I enjoyed The Happiest Toddler on the Block. Some of it reads as a little silly, but the more I thought about it the more I realized it was probably right. The things I've implemented from it have proven very successful.
Trying to live a simple life in a messy house in a complicated world with : DH, DD (b. 07/07), DS (b. 02/09), and DD (b. 10/10)