I found this book extremely hard to understand the author has rushed through everything. Does not explain the code, it's just been printed on the page for you to look at which is just ridiculous. I feel I didn't learn much from the book and had to keep referring to other text books and the internet. Don't recommend it at all.

I'd also like to add, I wish I had listened to the above reviewer. I thought I'd still give it a try. I regret this.