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It is known as the science of secrecy. Cryptography: the encoding and decoding of private information. And it is history's most fascinating story of intrigue and cunning. From Julius Caesar and his Caesar Cipher to the code used by Mary Queen of Scots and her conspiracy to the use of the Engima machine during the Second World War, Simon Singh follows the evolution of secret writing. Accessible, compelling, and timely, this international bestseller, now adapted for young people, is sure to make readers see the past and the future - in a whole new way....

Many analysts are too concerned with tools and techniques for cleansing, modeling, and visualizing datasets and not concerned enough with asking the right questions. In this practical guide, data strategy consultant Max Shron shows you how to put the why before the how, through an often-overlooked set of analytical skills.Thinking with Data helps you learn techniques for turning data into knowledge you can use. You'll learn a framework for defining your project, including the data you want to collect, and how you intend to approach, organize, and analyze the results. You'll also learn patterns of reasoning that will help you unveil the real problem that needs to be solved.Learn a framework for scoping data projectsUnderstand how to pin down the detai...

From the publishers who show you How to Do Everything, here is the ideal resource for anyone who wants to create rich presentations with PowerPoint. You'll find out how to use all the features of the software and get coverage of key topics, such as creating a well-written outline, the fine points of graphic design, and tips for delivering the presentation in front of an audience. Also included is a section on Microsoft Producer, a free add-in for PowerPoint that manages streaming media for Web and CD-based presentations...

Here is the ideal resource for anyone who wants to get the most out of all the new and enhanced features Excel has to offer. Learn the best methods for formatting, printing, and sharing worksheets, adding graphics, importing and exporting data to and from the Web--and much more....