Yet another book from Packt Publishing on developing games using the Unity engine, with more focus on 2D game development, such as using Unity’s powerful Sprite feature.
Some part of the book can go a little too detailed and gamedev-mood-killing for me. If you don't mind reading more technical explanations, this book should be fine for you. I find it useful for referencing purposes.
Would recommend this for those who have zero experience in Unity or game development.
Check out the book here: http://bit.ly/1H4tTGu