Good books don't get discounted by 60%, because items that sell well charge a premium in our capitalistic culture.This book is unorganized. Lacks clear and cohesive sentence structure that leads to understanding. It is a step above the Enzio book, but that isn't really saying much. The code examples do run, check errata, and for some reason it is easier to read the code than a paragraph from this author. Go figure?A true nightmare, and don't be fooled by the gratuitous stars from the author's friends.