There are, currently three books out that cover this topic and this book is in third place!
While the explanations and directions are, for the most part clear and easy to understand, they are neither as clear nor as detailed as those in the Todd Duell book. However, this is not the show stopper.
The big time show stoppers are the illustrations in the book! They are, almost exclusively, very poor reproductions of computer screen captures. They are so unreadable that I often had to resort to a magnifying glass in order to be able to read them. In a book that is supposed to be a tutorial this is completely unacceptable.
No user should have to print out all of the exercise files in order to be able to read the book.