This book is trash, it might work as a reference or review if you know the content already. It has multiple typos in each page (almost) even in the samples!

The samples are not explained enough. Through the first few chapters the book mentioned things assuming the reader knows it, causing a lot of confusion, but then those concepts are explained somewhat better later on.

If you want to learn new stuff then this book isn't for you.

I gave up on it while reading chapter 9, and decided to buy another book.
My recommendation to you is "ISBN: 1-58705-209-1". I started with the one and it looks awesome, besides it has great feedback.

Hope to get SNPA approved fast with this one.