That's the first book I bought because of all the 'Get it"s I got from here. Thirty bucks is a good price too. I paid 50 off Ebay for mine and it's helped me out a buncha times when I got stuck so I didn't have to come back to the board and be like, "Der.....How do i do this?"
I feel dumb enough with the questions I already ask. I'd say it was money well spent.