If you want to know everything about embedding Linux this is it!
I have been involved in Embedded Linux for the past three years, and often spent countless hours on the net, reading through vast amount of documents, done by the kind folks of the Linux commmunity.
Karim has done a splendid job, pulling together everything you need to know, to embed Linux on a varaiety of architectures, and walks you through in simple, easy to understand manner.
This book is a "must have" for anyone deploying Linux on embedded systems. Besides its a cracking read anyway, if you like to broaden your knowledge on Linux internals.