Acclaim for Denis Brian′s Einstein: A Life

"The best account.... Superb insight." ––The Times (London)

"Denis Brian′s convincing picture...only makes our wonder grow at Einstein′s sublime achievements." ––The Washington Post

"Does much to reveal the man behind the image.... Brian′s intimate work proves that in literature, as in science, taking a careful look can be a rewarding endeavor." ––Detroit Free Press

"A fascinating, vastly enjoyable, deeply researched and fair account of Einstein the man." ––Physics World

"Exhaustively researched, almost obsessively detailed, written with unobtrusive informality, the book is exemplary as a record of Einstein′s personal and professional life." ––The Spectator (u.k.)

"An utterly fascinating life of a great scientist, full of new insights and very readable." ––Ashley Montagu

"A fascinating read with more interesting material about Einstein as a human being than I have ever seen before.... Once I started it, I couldn′t put it down." ––Robert Jastrow, astrophysicist and bestselling author

This is the only reference to explore the history of geographic thought, from the ancient Greeks to the present day. It focuses on the differences between pre-Darwin and post-Darwin thinking and the changes that have taken place. Features extensive references, an index of names with brief biographic comments and four new chapters on the new geography of Canada, Sweden, Japan and the United States (from mid-century to the present).

Praise for Algorithmic Trading: "Algorithmic Trading is an insightful book on quantitative trading written by a seasoned practitioner. What sets this book apart from many others in the space is the emphasis on real examples as opposed to just theory. Concepts are not only described, they are brought to life with actual trading strategies, which give the reader insight into how and why each strategy was developed, how it was implemented, and even how it was coded. This book is a valuable resource for anyone looking to create their own systematic trading strategies and those involved in manager selection, where the knowledge contained in this book will lead to a more informed and nuanced conversation with managers." (Daren Smith, CFA, CAIA, FSA, Managing Director, Manager Selection & Portfolio Construction, University of Toronto Asset Management). "Using an excellent selection of mean reversion and momentum strategies, Ernie explains the rationale behind each one, shows how to test it, how to improve it, and discusses implementation issues. His book is a careful, detailed exposition of the scientific method applied to strategy development. For serious retail traders, I know of no other book that provides this range of examples and level of detail. His discussions of how regime changes affect strategies, and of risk management, are invaluable bonuses." (Roger Hunter, Mathematician and Algorithmic Trader).

Statistical pattern recognition relates to the use of statistical techniques for analysing data measurements in order to extract information and make justified decisions. It is a very active area of study and research, which has seen many advances in recent years. Applications such as data mining, web searching, multimedia data retrieval, face recognition, and cursive handwriting recognition, all require robust and efficient pattern recognition techniques. This third edition provides an introduction to statistical pattern theory and techniques, with material drawn from a wide range of fields, including the areas of engineering, statistics, computer science and the social sciences. The book has been updated to cover new methods and applications, and includes a wide range of techniques such as Bayesian methods, neural networks, support vector machines, feature selection and feature reduction techniques.Technical descriptions and motivations are provided, and the techniques are illustrated using real examples. Statistical Pattern Recognition, 3rd Edition:* Provides a self-contained introduction to statistical pattern recognition.* Includes new material presenting the analysis of complex networks.* Introduces readers to methods for Bayesian density estimation.* Presents descriptions of new applications in biometrics, security, finance and condition monitoring.* Provides descriptions and guidance for implementing techniques, which will be invaluable to software engineers and developers seeking to develop real applications* Describes mathematically the range of statistical pattern recognition techniques.* Presents a variety of exercises including more extensive computer projects. The in-depth technical descriptions make the book suitable for senior undergraduate and graduate students in statistics, computer science and engineering. Statistical Pattern Recognition is also an excellent reference source for technical professionals. Chapters have been arranged to facilitate implementation of the techniques by software engineers and developers in non-statistical engineering fields. www.wiley.com/go/statistical-pattern-recognition

在线阅读本书
An intriguing look at how past market wisdom can help you survive and thrive during uncertain times
In Wealth, War & Wisdom, legendary Wall Street investor Barton Biggs reveals how the turning points of World War II intersected with market performance, and shows how these lessons can help the twenty-first-century investor comprehend our own perilous times as well as choose the best strategies for the modern market economy.
Through these pages, Biggs skillfully discusses the performance of equities in both victorious and defeated countries, examines how individuals preserved their wealth despite the ongoing battles, and explores whether or not public equities were able to increase in value and serve as a wealth preserver. Biggs also looks at how other assets, including real estate and gold, fared during this dynamic and devastating period, and offers valuable insights on preserving one's wealth for future generations. With clear, concise prose, Biggs
Reveals how the investment insights of truly trying times can be profitably applied to modern day investment endeavors Follows the performance of global markets against the backdrop of World War II Offers many relevant lessons-about life, politics, financial markets, wealth, and survival-that can help you thrive in the face of adversity
Wealth, War & Wisdom contains essential insights that will help you navigate modern financial markets during the uncertain times that will increasingly define this new century.

Pattern-oriented software architecture is a new approach to software development. This book represents the progression and evolution of the pattern approach into a system of patterns capable of describing and documenting large-scale applications. A pattern system provides, on one level, a pool of proven solutions to many recurring design problems. On another it shows how to combine individual patterns into heterogeneous structures and as such it can be used to facilitate a constructive development of software systems. Uniquely, the patterns that are presented in this book span several levels of abstraction, from high-level architectural patterns and medium-level design patterns to low-level idioms. The intention of, and motivation for, this book is to support both novices and experts in software development. Novices will gain from the experience inherent in pattern descriptions and experts will hopefully make use of, add to, extend and modify patterns to tailor them to their own needs. None of the pattern descriptions are cast in stone and, just as they are borne from experience, it is expected that further use will feed in and refine individual patterns and produce an evolving system of patterns.

Legendary trader Larry McMillan does it-again-offering his personal options strategies for consistently enhancing trading profits
Larry McMillan's name is virtually synonymous with options. This "Trader's Hall of Fame" recipient first shared his personal options strategies and techniques in the original McMillan on Options. Now, in a revised and Second Edition, this indispensable guide to the world of options addresses a myriad of new techniques and methods needed for profiting consistently in today's fast-paced investment arena. This thoroughly new Second Edition features updates in almost every chapter as well as enhanced coverage of many new and increasingly popular products. It also offers McMillan's personal philosophy on options, and reveals many of his previously unpublished personal insights. Readers will soon discover why Yale Hirsch of the Stock Trader's Almanac says, "McMillan is an options guru par excellence."
Lawrence G. McMillan (Morristown, NJ) is President of McMillan Analysis Corporation. As the foremost authority on options, Mr. McMillan is publisher of the Option Strategist, a leading advisory newsletter for the options community, and creator of the innovative fax service "Daily Volume Alerts." He is also the author of the bestselling books Profit with Options (0-471-22531-2) and McMillan on Options (0-471-11960-1). A recipient of the Trader's Hall of Fame Award, Mr. McMillan is also a sought-after speaker and options educator, and conducts options training workshops around the country.

Critical Praise.. "In my interviews with over 30 of the best traders of our time, there were some questions that I raised in each conversation. One of these was: Are there any books that you found particularly valuable and would recommend to aspiring traders? By far, the most frequent response was Reminiscences of a Stock Operator-a book that was over 70 years old!" -from the Foreword by Jack Schwager Author of Market Wizards and The New Market Wizards "Although Reminiscences.was first published some 70 years ago, its take on crowd psychology and market timing is as timely as last summer's frenzy on the foreign exchange markets." -Worth magazine "The most entertaining book written on investing is Reminiscences of a Stock Operator, by Edwin Lefevre, first published in 1923." -The Seattle Times "The best book I've read is Reminiscences of a Stock Operator. I keep a supply for people who come to work for me." -Martin Zweig "After 20 years and many re-reads, Reminiscences is still one of my all-time favorites." -Kenneth L. Fisher Forbes First published in 1923, Reminiscences of a Stock Operator is the fictionalized biography of Jesse Livermore, one of the greatest speculators ever. Reminiscences remains the most widely read, highly recommended investment book ever written. Generations of investors have found that it has more to teach them about themselves and other investors than years of experience in the market. This is a timeless tale that will enrich the lives-and portfolios-of today's investors as it has those of generations past.

在线阅读本书
Rare is the opportunity to chat with a legendary financial figure and hear the unvarnished truth about what really goes on behind the scenes. Hedgehogging represents just such an opportunity, allowing you to step inside the world of Wall Street with Barton Biggs as he discusses investing in general, hedge funds in particular, and how he has learned to find and profit from the best moneymaking opportunities in an eat–what–you–kill, cutthroat investment world.
点击链接进入中文版：
对冲基金风云录(典藏版)

在线阅读本书
Book Description
Inside the House of Money lifts the veil on the typically opaque world of hedge funds, offering a rare glimpse at how today's highest paid money managers approach their craft. Author Steven Drobny demystifies how these star traders make billions for well-heeled investors, revealing their theories, strategies and approaches to markets. Drobny, cofounder of Drobny Global Advisors, an international macroeconomic research and advisory firm, has tapped into his network and beyond in order assemble this collection of thirteen interviews with the industry's best minds. Along the way, you'll get an inside look at firsthand trading experiences through some of the major world financial crises of the last few decades. Whether Russian bonds, Pakistani stocks, Southeast Asian currencies or stakes in African brewing companies, no market or instrument is out of bounds for these elite global macro hedge fund managers. Highly accessible and filled with in-depth expert opinion, Inside the House of Money is a must-read for financial professionals and anyone else interested in understanding the complexities at stake in world financial markets.
"The ruminations of supposedly hush-hush hedge fund operators are richly illuminating." -- New York Times
From the Inside Flap
In today's difficult investment environment, where geopolitical and social instability compound an already challenging search for higher returns, hedge funds have outperformed. As a result, assets under management have exploded and top investment talent has migrated over to hedge funds. Amidst the growth and evolution of the business, one strategy—global macro—has remained true to its original mandate of absolute return investing, which seeks outsized returns from investments anywhere in the world, in any asset class, and in any instrument.
Although successful money managers often have a reputation for being reluctant to discuss their market views and trading strategies, Inside the House of Money opens the door to the typically opaque world of hedge funds—particularly global macro investing—and offers a rare glimpse into a high-intensity environment where enormous stakes are a part of everyday life. As cofounder and partner of Drobny Global Advisors—an international macroeconomic research and advisory firm—author Steven Drobny has access to a broad selection of today's top global macro hedge fund managers. Through detailed interviews with more than a dozen of these individuals, Drobny provides you with an inside look at how these money managers view world markets and offers subtle insights into how they make money.
First, you will receive an introduction to global macro from a professional investor's perspective. Then, you will discover how some key historical events have shaped this field. You will also learn how future events, such as increased competition and specialization, are pushing today's global macro manager into the realm of global micro investing. With this information in hand, you'll go Inside the House of Money through a collection of in-depth interviews with a variety of money managers, each with a unique perspective and approach to global markets, including:
* The Family Office Manager: Jim Leitner (Falcon Management)
* The Prop Trader: Christian Siva-Jothy (SemperMacro)
* The Treasurer: Dr. John Porter (Barclays Capital)
* The Central Banker: Dr. Sushil Wadhwani (Wadhwani Asset Management)
* The Dot-Commer: Peter Thiel (Clarium Capital Management)
* The Pioneer: Jim Rogers
* The Commodity Specialist: Dwight Anderson (Ospraie Management)
* The Emerging Market Specialist: Marko Dimitrijevic (Everest Capital)
And others
Filled with in-depth insight and real-world experiences of top hedge fund traders, Inside the House of Money reveals how the best minds in the business identify and profit from opportunities in every corner of the globe.
Book Dimension
length: (cm)23.1 　　　 　　　　　 　　　　　 width:(cm)15.9

在线阅读本书
Book Description
Widely respected and admired, Philip Fisher is among the most influential investors of all time. His investment philosophies, introduced almost forty years ago, are not only studied and applied by today's financiers and investors, but are also regarded by many as gospel. This book is invaluable reading and has been since it was first published in 1958. The updated paperback retains the investment wisdom of the original edition and includes the perspectives of the author's son Ken Fisher, an investment guru in his own right in an expanded preface and introduction
"I sought out Phil Fisher after reading his Common Stocks and Uncommon Profits...A thorough understanding of the business, obtained by using Phil's techniques...enables one to make intelligent investment commitments."
Warren Buffet
From AudioFile
This program takes a fundamental view of what it takes to be a top-drawer business worthy of your investment dollar. It's based on traditional company variables like capitalization, market position, and labor relations, and some new variables like organizational adaptability and leadership depth and vision. The broad thinking and nuances are so intuitive and clearly drawn that listeners won't even realize how abstract and intelligent this writing is. The impressive piece of work is nicely abridged, and George Guidall is as connected to the material as anyone could be. Still, this is not for the cognitively challenged, nor for overly aggressive investors nor those with money hang-ups. A great resource for understanding why some companies are great and which ones will be. T.W.
Book Dimension
length: (cm)22.2 　　　 　　　　　 　　　　　 width:(cm)18

"PPPP ...To compress 200 years of psychiatric theory and practice into a compelling and coherent narrative is a fine achievement ...What strikes the reader [most] are Shorter's storytelling skills, his ability to conjure up the personalities of the psychiatrists who shaped the discipline and the conditions under which they and their patients lived."--Ray Monk The Mail on Sunday magazine, U.K. "An opinionated, anecdote-rich history...While psychiatrists may quibble, and Freudians and other psychoanalysts will surely squawk, those without a vested interest will be thoroughly entertained and certainly enlightened."--Kirkus Reviews. "Shorter tells his story with immense panache, narrative clarity, and genuinely deep erudition."--Roy Porter Wellcome Institute for the History of Medicine. In A History of Psychiatry, Edward Shorter shows us the harsh, farcical, and inspiring realities of society's changing attitudes toward and attempts to deal with its mentally ill and the efforts of generations of scientists and physicians to ease their suffering. He paints vivid portraits of psychiatry's leading historical figures and pulls no punches in assessing their roles in advancing or sidetracking our understanding of the origins of mental illness. Shorter also identifies the scientific and cultural factors that shaped the development of psychiatry. He reveals the forces behind the unparalleled sophistication of psychiatry in Germany during the eighteenth and nineteenth centuries as well as the emergence of the United States as the world capital of psychoanalysis. This engagingly written, thoroughly researched, and fiercely partisan account is compelling reading for anyone with a personal, intellectual, or professional interest in psychiatry.

Understand the next level of marketing The new model for marketing-Marketing 3.0-treats customers not as mere consumers but as the complex, multi-dimensional human beings that they are. Customers, in turn, are choosing companies and products that satisfy deeper needs for participation, creativity, community, and idealism. In Marketing 3.0 , world-leading marketing guru Philip Kotler explains why the future of marketing lies in creating products, services, and company cultures that inspire, include, and reflect the values of target customers. Explains the future of marketing, along with why most marketers are stuck in the past Examines companies that are ahead of the curve, such as S. C. Johnson Kotler is one of the most highly recognized marketing gurus, famous for his "4 P's of Marketing" In an age of highly aware customers, companies must demonstrate their relevance to customers at the level of basic values. Marketing 3.0 is the unmatched guide to getting out front of this new tide sweeping through the nature of marketing.
点击链接进入中文版：
营销革命3.0:从产品到顾客,再到人文精神

Your guide to becoming an explanation specialist. You've done the hard work. Your product or service works beautifully - but something is missing. People just don't see the big idea - and it's keeping you from being successful. Your idea has an explanation problem. The Art of Explanation is for business people, educators and influencers who want to improve their explanation skills and start solving explanation problems. Author Lee LeFever is the founder of Common Craft, a company known around the world for making complex ideas easy to understand through short animated videos. He is your guide to helping audiences fall in love with your ideas, products or services through better explanations in any medium. You will learn to: Plan: Learn explanation basics, what causes them to fail and how to diagnose explanation problems. Package: Using simple elements, create an explanation strategy that builds confidence and motivates your audience. Present: Produce remarkable explanations with visuals and media. The Art of Explanation is your invitation to become an explanation specialist and see why explanation is now a fundamental skill for professionals.

The essential reference for financial risk managementFilled with in-depth insights and practical advice, the "Financial Risk Manager Handbook" is the core text for risk management training programs worldwide. Presented in a clear and consistent fashion, this completely updated "Fifth Edition"-which comes with an interactive CD-ROM containing hundreds of multiple-choice questions from previous FRM exams-is one of the best ways to prepare for the Financial Risk Manager (FRM) exam."Financial Risk Manager Handbook, Fifth Edition" supports candidates studying for the Global Association of Risk Professional's (GARP) annual FRM exam and prepares you to assess and control risk in today's rapidly changing financial world. Authored by renowned risk management expert Philippe Jorion-with the full support of GARP-this definitive guide summarizes the core body of knowledge for financial risk managers. Offers valuable insights on managing market, credit, operational, and liquidity risk Examines the importance of structured products, futures, options, and other derivative instruments Identifies regulatory and legal issues Addresses investment management and hedge fund risk"Financial Risk Manager Handbook" is the most comprehensive guide on this subject, and will help you stay current on best practices in this evolving field. The FRM Handbook is the official reference book for GARP's FRM(R) certification program.Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.
点击链接进入中文版：
金融风险管理师考试手册(第5版)

Discover all the security risks and exploits that can threaten iOS-based mobile devices iOS is Apple's mobile operating system for the iPhone and iPad. With the introduction of iOS5, many security issues have come to light. This book explains and discusses them all. The award-winning author team, experts in Mac and iOS security, examines the vulnerabilities and the internals of iOS to show how attacks can be mitigated. The book explains how the operating system works, its overall security architecture, and the security risks associated with it, as well as exploits, rootkits, and other payloads developed for it. Covers iOS security architecture, vulnerability hunting, exploit writing, and how iOS jailbreaks work Explores iOS enterprise and encryption, code signing and memory protection, sandboxing, iPhone fuzzing, exploitation, ROP payloads, and baseband attacks Also examines kernel debugging and exploitation Companion website includes source code and tools to facilitate your efforts iOS Hacker's Handbook arms you with the tools needed to identify, understand, and foil iOS attacks.

Critical Acclaim for The Practical Art of Suicide Assessment
"There is . . . no better guide for learning about and clinically assessing the phenomenology of suicidal states. Penned with a compelling elegance and charm, The Practical Art of Suicide Assessment is brimming with clinical wisdom, enlightening case illustrations, and a vibrant sense of compassion."-David A. Jobes, PhD, past president, American Association of Suicidology
"If I were asked to recommend only one book to equip clinicians to conduct the best possible suicide risk assessments, The Practical Art of Suicide Assessment would be it."-Thomas E. Ellis, PsyD, ABPP, past director, Clinical Division of the American Association of Suicidology
"A concise, carefully conceptualized, well-written book . . . highly recommended for all psychiatric residents and all other mental health students."-Journal of Clinical Psychiatry
"This outstanding book is informative, interesting, and clinically useful."-American Journal of Psychiatry
The Practical Art of Suicide Assessment covers all the critical elements of suicide assessment-from risk factor analysis to evaluating clients with borderline personality disorders or psychotic process. This highly acclaimed text provides mental health professionals with the tools they need to assess a client's suicide risk and assign appropriate levels of care using the highly acclaimed interview strategy for eliciting suicidal ideation-the Chronological Assessment of Suicide Events (the CASE Approach).
Now available in paperback, the leading book on suicide assessment also contains three important new appendices:
* How to Document a Suicide Assessment
* Safety Contracting Revisited: Pros, Cons, and Documentation
* A Quick Guide to Suicide Prevention Web Sites

With a foreword by Clifford Asness, this book is a one stop guide to measuring the expected returns of a range of investments to enable long term investors to better manage and balance their portfolio.
For any investor, understanding the expected rewards that markets offer is central to long–term investment success. The traditional paradigm for assessing expected returns has focussed on historical performance and asset class management. However, Antti Ilmanen contends that this approach to investment decision–making is too narrow in its asset class focus and in the inputs used for assessing expected returns. He challenges investors to broaden their perspectives in two ways:
Excess returns should be harvested from diverse sources. Strategy styles and risk factors, as well as asset classes, are sources of return, thus warranting three–dimensional analysis of investments.
Any investment′s return prospects should be judged in a way that incorporates all knowledge, including historical experience, financial and behavioral theories, and current market conditions, without being overly dependent on any one of these.
Beginning with comprehensive introduction and overview, Expected Returns goes on to analyze the historical record, give a roadmap of terminology, explore rational and behavioral theories, and look at alternative interpretations for return predictability. A series of case studies provide detailed analysis of assets (equity, bond and credit risk premia, as well as alternative asset classes), dynamic strategy styles (value, carry, momentum, volatility) and underlying risk factors (growth, inflation, liquidity and tail risks), before moving back to broader themes, including time–varying expected returns, and seasonal, cyclical and secular return patterns.
Concluding with a series of investment lessons, Expected Returns is the complete guide for the long–term investor, providing wide–ranging empirical evidence, and a platform for forecasting the expected returns of an investment portfolio for asset allocation and portfolio balancing purposes.
From the Inside Flap
Expected Returns is a one–stop reference that gives investors a comprehensive toolkit for harvesting market rewards from a wide range of investments. Written by an experienced portfolio manager, scholar, strategist, investment advisor and hedge fund trader, this book challenges investors to broaden their minds from a too–narrow asset class perspective and excessive focus on historical performance. Coverage includes major asset classes (stocks, bonds, alternatives), investment strategies (value, carry, momentum, volatility) and the effects of underlying risk factors (growth, inflation, illiquidity, tail risks). Judging expected returns requires balancing historical returns with both theoretical considerations and current market conditions. Expected Returns summarizes the state of knowledge on all of these topics, providing extensive empirical evidence, surveys of risk–based and behavioral theories, and practical insights.
"This is the best book on active management ever written – and it achieves that status without mentioning a single stock or bond by name. Anyone who performs the rigorous analysis Ilmanen describes – admittedly a neat trick, since the world′s most sophisticated investors struggle to do it successfully – will beat the market."
Laurence B. Siegel, Former Director of Research, The Ford Foundation
"Antti Ilmanen shows the way forward for the investment management profession in this remarkable book. In a comprehensive and impressive way, he combines financial theory, historical performance data and forward–looking indicators, into a consistent framework for assessing expected returns and risk. His approach is both scientific and practical, based on decades of studies and his own trading experience. With a touch of personal wisdom and humility, Ilmanen′s book is a fascinating and educational journey into the future of investment management."
Knut N. Kjaer, Founding CEO of the Norwegian Government Pension Fund/NBIM and former president of RiskMetrics Group
"Ilmanen′s wonderful book manages to be exquisitely readable while covering just about every aspect of the investment process. Filled with many, many fresh and useful insights. This volume deserves to be read and then kept close at hand – because it is sure to be needed again and again."
Martin L. Leibowitz, Managing Director, Morgan Stanley, and former CIO, TIAA–CREF
"Job one for any investor is to estimate asset class returns. For the first time, Antti Ilmanen has assembled into one volume all of the tools necessary for this task: for the working money manager, a unique treasure trove of analytical techniques and empirical evidence; for the academic, a comprehensive guide to the relevant academic literature; and for the consultant, a blinding light with which to illuminate performance. Expected Returns is destined to occupy the front shelves of investment professionals around the world."
William J. Bernstein, author of The Intelligent Asset Allocator, The Birth of Plenty, and A Splendid Exchange, and co–principal of Efficient Frontier Advisors
"Antti′s synthesis of experience and theory has given us a book which fills a major gap in the literature on investing. Amazing, but true, this is the first book dedicated to the critical and challenging task of estimating how much we should expect to earn on our investments. This illuminating book, teaming with valuable insights that have never before been gathered under one roof, cannot fail to make the reader a more successful and discerning investor."
Victor Haghani, Associate Lecturer, London School of Economics, and former founding partner of LTCM
"Ilmanen has written a thorough and detailed analysis of one of the central issues in investing."
Ken French, Heidt Professor of Finance, Dartmouth College
"Investors′ decisions should be evidence based. Antti Ilmanen assembles a global body of evidence, and interprets it with insight. Read this book and you will improve your understanding of the future."
Elroy Dimson, Emeritus Professor of Finance, London Business School
"If I could choose only one book on active management, I would choose Expected Returns. This book is extremely thorough and well researched, yet direct and to the point."
Roger G. Ibbotson, Professor in the Practice of Finance, Yale School of Management, and Chairman and CIO of Zebra Capital Management

Retaining the general organization and style of its predecessor, this new edition continues to serve as a comprehensive guide to modern and classical methods of statistical computing and computational statistics. Approaching the topic in three major parts--optimization, integration, and smoothing--the book includes an overview section in each chapter introduction and step-by-step implementation summaries to accompany the explanations of key methods; expanded coverage of Monte Carlo sampling and MCMC; a chapter on Alternative Viewpoints; a related Web site; new exercises; and more.