I bought the book and I'll say I was disappointed with the book. A couple of points, though. 1. The topic is huge, it's hard to cover everything because the

I bought the book and I'll say I was disappointed with the book. A couple of points, though. 1. The topic is huge, it's hard to cover everything because the way you can query and setup your mappings is really very open-ended. 2. The book is a good way to get started, but it lacks as a reference. See point 1., a reference may not be possible. The best way to learn ES is to set yourself up with a scripting language (python, ruby, etc.) and prototype everything, then apply what you learned to your language of chocie (i.e. Java if the scripting language isn't your language of choice).