Okay, first of all we have to talk about the cover. Like many of these books, it has a great depiction of a Tyrannosaurus rex head on the cover, but this one’s eyes are closed. When you press a button on the cover, you hear the T-rex roar and open up it’s eye. That’s what I’m talkin’ about! Inside it’s full of pop-ups, tabs, etc. that will keep your paleontologist-in-training entertained for quite a while. The book is thick, but there are not a lot of pages. Each page is chock full of info and pictures, though.