Among all the books on algorithms, some are very rigorous, but not comprehensive; others cover a lot of materials, but lack preciseness. Introduction to Algorithms combines rigor and comprehensiveness together, discusses all kinds of algorithms in depth, and focuses on making the design and analysis of these algorithms more acceptable to readers at all levels.

If you are a developer with at least 5 years of experience in Java programming, then developing an Android application that can be put into use may be nothing. But for beginners who just start everything from scratch, this is a very grueling and pain thing. Because he or she has to begin with learning the Java programming.

The author of MySQL Cookbook Paul DuBois is one of the first group of contributors of MySQL online reference manuals, who has written many classic books about MySQL. It is important to note that this book isn't to teach you how to develop a complete and complex application; on the contrary, it is to help you overcome various problems had stumped you in MySQL database development. Therefore, it is suitable for all related personnels engaged in the development of database technology to read. And it has became one of must-read books for MySQL developers.

As a representative of open source software, MySQL had already become the world's most popular DBMS (database managing system) long time ago. After Sams Teach Yourself SQL in 10 Minutes (AKA: SQL Crash Course), MySQL Crash Course became another classic bestseller. This book is actually written by Ben Forta at the requests from many readers, and specifically for MySQL users.

PHP 5 Power Programming is a classic must-read authoritative book with 720 pages of content published in 2004, cooperatively written by 3 PHP masters (PHP 5's chief designer - Andi Gutmans, PEAR's founder - Stig Saether Bakken and PHP's core contributor - Derick Rethans). Now its full copyright has been completely free.