This book was filled with a lot of introductions and filler and then more of the same re-worded over and over. The information is no more detailed than what your regular doctor might tell you, combined with some common sense.
They use a short list of 'dragon' types for you to categorize your child and then ask you to use that 'type' to determine a course of action with which to tame them. Not surprising, my children did not fit any category and therefore it was unclear as to their recommendation. Even so, it is a short book, once you remove all the redundancy, even shorter - therefore the information/suggestion given for each type is nil and, as said, the suggestions themselves are no more clinical than a regular doctor would give or that you use based on simple common knowledge.
I've only ever read 4 parenting books. (They just aren't my favorite thing.) This one I liked. There are realistic scenarios, and suggestions for how to deal with specific problems. Unlike the other books I've read, the book was consistent (didn't contradict itself in a later chapter) realistic, and most importantly starts by instructing the parents and the family to assess their own anger before trying to "fix" the angry child.