This book is a great book if you want to get started with Configuration Manager 2012! It is well written by experienced professionals (Brian Mason and Greg Ramsey both MVP’s) with tons of experience, with a focus on getting you started and explaining why you do the things you do.
Configuration Manager 2012 is a very complex product so it can be a real challenge the first time you start using it. I really like that each feature covered in the book is divided in “Getting ready”, “How to do it”, “How it Works”, it makes it much easier to get an understanding how it actually works.
Check it out here: Microsoft System Center 2012 Configuration Manager: Administration Cookbook.