I thought this was a silly book and not very useful. It does list a large number of names, however it groups names together in personality types- very different kinds of names & up to 30 for 1 type! Also, the research they did was laughable- they named cats and observed their behavior. It sounds like they may have only used two cats as well. If you just want to be entertained it could be all right, I'm sure some personalities happen to be accurate.