I read this book 12 years ago, when my oldest son was four and my younger son was one. It changed my life and how I interfaced with my children. I tell everyone to read this book. I think that all parents know "what" they should be doing so their children behave, however,this book does is tell you "how to do it". The examples are wonderful. I now have a "tweener" and a "teenager" and they are really nice, respectful kids. The chapter on "contribution" is critical. After reading that, I had the kids start helping me set the table, put the dishes away from the dishwasher, and sort, fold and put away laundry. It has made my life so much easier; and our family's life so much more enjoyable. Don't hesitate to purchase this book, if you read it and implement the recommendations, it works - and works really quickly (we had a huge behavior improvement after the first weekend).