Both my boys (ages 5 and 2) are big Thomas fans, and this book is probably their favorite Thomas book. There is truly a lot to see and do here! I think their favorite page is the one with a lot of sheds to open and see all the favorites---James, Percy---all of the gang! Another page has boxes filled with different numbers of things---toys, hats, bananas, etc. One page even features a man that looks a little bit like Schemer from the Shining Time Station series, although I don't think he really is, but that didn't stop that from being the favorite flap in the book for my older son! Each page is filled with interesting details. Certainly worth every penny.