The colors aren't lurid, sticking to muted greens, grays, and browns. Naturally, most of the book depicts the Late Cretaceous which T. rex inhabited, but an early spread accurately depicts a Jurassic environment with an Allosaurus, some Camptosaurus, and a Stegosaurus. A keen-eyed child would easily be able to differentiate the Allosaurus from T. rex, by virtue of its lighter build, bulkier, three-fingered hands, and smaller head.
This one has to be one of my favorites, if only for the gore factor. I'm pretty sure that the stance would have been impossible for a T. rex. But what the heck. That's a big hunk of neck-meat.
Throughout the rest of the book, T. rex is depicted with the correct, horizontal-backbone posture. Riehecky is a bit of a dinosaur nut, and she consulted with the Field Museum to ensure the accuracy of the information.
I'm really eager to find more titles in this series - what's most intriguing is that Riehecky strays from the big names, devoting titles to Hypsilophodon, Saltasaurus, Baryonyx, and Oviraptor. I just found a used copy of the Baryonyx book on Barnes and Noble, by a different illustrator. Look for that one soon...