Learn how to detect any corporate sleight of hand—and gain the upper hand with smart investing Investing expert John Del Vecchio and “Motley Fool” Tom Jacobs offer a compelling arguement that the secret to stock-market success today isn’t finding the next Google or eBay, but avoiding the next AIG or Enron. To that end, they offer simple, clear techniques for detecting when and how legitimate companies make their numbers look better than they are. What's Behind the Numbers? offers seven rules for finding companies playing with—rather than by—the numbers and explains how to avoid losing money by determining exactly when a stock is about to head south. John Del Vecchio, CFA, serves as a Principal of Ranger Alternative Management and principal of Parabolix Research, Inc. Tom Jacobs is lead advisor for the Motley Fool Special Ops, a stock service where he manages a special situations and opportunistic portfolio. He is cofounder of Complete Growth Investor LLC.

"A wonderful tool! No educational jargon to weed through. The author meshes the real world with the ideal world and provides a concrete guide for principals to work with their faculty." —Marie Blum, Superintendent Canaseraga Central School, NY "Provides insight, evidence, humor, and most important, practical tools every educator and school leader can use. With the wisdom earned through decades of work in schools of every conceivable description, Cox guides us through the belief systems and data analysis, as well as the impact of demographic characteristics, teaching practices, and leadership decisions on student achievement." —Douglas Reeves, Chairman Center for Performance Assessment Focus on program quality—not just test scores—and watch student achievement climb! In this remarkable book, renowned educational consultant James Cox offers a smarter way to look at data, putting test scores in context, not in isolation. Rather than focusing on last year′s findings for school improvement, educators can learn how to evaluate the processes and practices that lead to those data by using a user-friendly, three-pronged framework for school improvement: teacher quality, program elements, and leadership. This concise, practical guide offers easy-to-use tools and techniques for schools and districts to evaluate their programs using both quantiative and qualitative data. School leaders will learn to look at data, program evaluation, and school improvement differently and discover how to effectively: Define a quality program Analyze what is and is not working Avoid "test score fatigue" Packed with worksheets, step-by-step instructions, and an extensive appendix of tools, this book provides readers with a complete improvement plan to put into action today!

This book should be read by everyone who plays the state-run lotteries. Despite the fact that we players all know 'the odds are a million to one' against winning those big jackpots, most of us don't know the nature of these games or the math behind them or, yes, how to most effectively play them. In this groundbreaking book, you will learn: How to increase your chances of winning a jackpot that doesn't have to be shared with other players; How to tell when a jackpot becomes a 'positive expectation' bet and what that really means; How to keep the long arm of the government from getting its hands on significant portions of your wins; How to figure the odds on the various lotteries and the typical scratch-off tickets; How to find 'positive expectation' scratch-off games during special promotions.

The companion to the hit CBS crime series Numb3rs presents the fascinating way mathematics is used to fight real-life crime Using the popular CBS prime-time TV crime series Numb3rs as a springboard, Keith Devlin (known to millions of NPR listeners as the Math Guy on NPR's Weekend Edition with Scott Simon) and Gary Lorden (the principal math advisor to Numb3rs) explain real-life mathematical techniques used by the FBI and other law enforcement agencies to catch and convict criminals. From forensics to counterterrorism, the Riemann hypothesis to image enhancement, solving murders to beating casinos, Devlin and Lorden present compelling cases that illustrate how advanced mathematics can be used in state-of-the-art criminal investigations.

“A fascinating book.” —James Ryerson, New York Times Book Review A Smithsonian Best Science Book of the Year Winner of the PROSE Award for Best Book in Language & Linguistics Carved into our past and woven into our present, numbers shape our perceptions of the world far more than we think. In this sweeping account of how the invention of numbers sparked a revolution in human thought and culture, Caleb Everett draws on new discoveries in psychology, anthropology, and linguistics to reveal the many things made possible by numbers, from the concept of time to writing, agriculture, and commerce. Numbers are a tool, like the wheel, developed and refined over millennia. They allow us to grasp quantities precisely, but recent research confirms that they are not innate—and without numbers, we could not fully grasp quantities greater than three. Everett considers the number systems that have developed in different societies as he shares insights from his fascinating work with indigenous Amazonians. “This is bold, heady stuff... The breadth of research Everett covers is impressive, and allows him to develop a narrative that is both global and compelling... Numbers is eye-opening, even eye-popping.” —New Scientist “A powerful and convincing case for Everett’s main thesis: that numbers are neither natural nor innate to humans.” —Wall Street Journal