[codygman]

I'll also chime in and say the same. I've been meaning to go back and complete the exercises I couldn't at first.

I almost got stuck not reading on because I couldn't figure out how to do some exercises but I'm glad I didn't because hindsight shows me that would have been a mistake.

[sivers]

Based on your recommendations, just now, I went to go check out the book and found they're having a one-day half-price sale on it at Apress, the publishers:

http://www.apress.com/9781430262503?gtmf=s

Nice timing. Buying now. Thanks for the tip.