Raising an Emotionally Intelligent Child
This book is twice as long as it needs to be and the writing isn't stellar, but dig a little and you'll find fabulously practical advice buried in the cheesy examples and bad prose. Gottman teaches you how to coach your kids (or anyone's kids) to understand their own emotions and deal with them in constructive ways. To do this, you have to confront the unhealthy ways you were (probably) taught to deal with your emotions as a kid. Painful, but WORTH IT. This book deserves its own post.
Other books in "7 Books That Changed the Way I Live, Love, and Parent"