Official site:http://www.imagemagick.org/script/index.php
CodePlex:http://imagemagick.codeplex.com/
Books:
Books About ImageMagick
An open source project backed by years of continual development, ImageMagick supports about 100 image formats and can perform impressive operations such as creating images from scratch; changing colors; stretching, rotating, and overlaying images; and overlaying text on images. Whether you use ImageMagick to manage the family photos or to embark on a job involving millions of images, this book provides you with the knowledge to manage your images with ease.
The Definitive Guide to ImageMagick explains all of these capabilities and more in a practical, learn-by-example fashion. You'll get comfortable using ImageMagick for any image-processing task. Through the book's coverage of the ImageMagick interfaces for C, Perl, PHP, and Ruby, you'll learn how to incorporate ImageMagick features into a variety of applications.
ImageMagick Tricks by Sohail Salehi: This fast-paced and practical tutorial is packed with examples of photo manipulations, logo creation, animations, and complete web projects. With this book up your sleeve, you'll be creating spellbinding images from code in no time. The publisher, Packt, is donating a percentage of every book sold to the ImageMagick project.
e-book:http://www.verycd.com/topics/136293/ and ppurl.com
enjoy it.