I have that book. Pretty good. If you want to save some money, buy the DRM free PDF copy on informit.com but wait for one of their 40-50% off sales which happen

I have that book. Pretty good. If you want to save some money, buy the DRM free PDF copy on informit.com but wait for one of their 40-50% off sales which happen near major holiday. I don't see one for July 4th though.