The Manipulative Child
ISBN-13: 978-0553379495
In spite of the title, it is actually a great resource to modify one's parenting style to better accommodate the needs of children who are naturally quite adept at manipulation, and it provides a great set of illustrations about WHY it is so worthwhile to do. It's not about punishment or even discipline-- it's about parenting in such a way that you avoid most power struggles to start with, and recognize manipulative behaviors before they suck you into the vortex.