Author John Deubert takes readers step by step through all of the Adobe Acrobat 8 essentials, both basic–creating and viewing electronic documents, streamlining document reviews, using Acrobat's commenting and reviewing tools–and advanced–using digital signatures, creating interactive forms, and protecting sensitive documents.

Both beginning users who want a thorough introduction to the topic, and more advanced users looking for a convenient reference will find what they need here in straightforward language, clear steps, and practical tips. By the end of the book, users will be able to smoothly integrate Adobe Acrobat 8 into their workflow.

Confused by Excel? Want to make the most of its capabilities? No worries - this hands-on workbook gets you up to speed in a step-by-step manner. From navigating the new user interface and creating your first spreadsheet to using formulas, working with charts and graphics, managing and securing data, and creating macros, you'll do it all with the help of practice files and more than 30 walk-throughs of Excel features on the CD-ROM. Plus, you get full coverage of all the new and enhanced features of Excel

Practical MythTV: Building a PVR and Media Center PC takes a project-based approach to implementing your own MythTV setup. You get to pick and choose the functionality you want to install for your PVR, and will learn the details of everything from selecting hardware to advanced customization.

Number theory and algebra play an increasingly significant role in computing and communications, as evidenced by the striking applications of these subjects to such fields as cryptography and coding theory. This introductory book emphasises algorithms and applications, such as cryptography and error correcting codes, and is accessible to a broad audience. The mathematical prerequisites are minimal: nothing beyond material in a typical undergraduate course in calculus is presumed, other than some experience in doing proofs - everything else is developed from scratch. Thus the book can serve several purposes. It can be used as a reference and for self-study by readers who want to learn the mathematical foundations of modern cryptography.

Satellite navigation receivers are used to receive, process, and decode space-based navigation signals, such as those provided by the GPS constellation of satellites. There is an increasing need for a unified open platform that will enable enhanced receiver development and design, as well as cost-effective testing procedures for various applications. This book and companion DVD provide hands-on exploration of new technologies in this rapidly growing field.

One of the unique features of the work is the interactive approach used, giving readers the ability to construct their own Global Navigation Satellite Systems (GNSS) receivers. To construct such a reconfigurable receiver with a wide range of applications, the authors discuss receiver architecture based on software-defined radio (SDR) techniques. The presentation unfolds in a systematic, user-friendly style and goes from the basics to cutting-edge research.