This book (2002 edition) is quite dated now. I would appreciate a newer edition.
The book's title is misleading--the book does not focus on analyzing microarray data, but rather outlines the conceptual basis for microarrays and provides examples of common uses. I think a better title would be "A General Introduction to Microarray Technology."
Schena also includes too much background material. Some of the background material is simply regurgitated material from introductory chemistry and physics textbooks and is usually only tangentially related to microarray technology.
But, the book does provide a solid introduction to microarray technology and is written in an accessible manner.