Read with the 9YO at bedtime. It was good but there's a LOT of repeated information, and it could do with editing. It reads like someone padding out their term paper. The 9YO was really hoping for more discussion of other phobias including some of the more unusual ones, and this book is 95% about just agoraphobia, so if that's what you're looking for, fine, but otherwise you might see if the library has some other books on the subject. He was bored with the repetition in this one and we've moved on to more Greek mythology.