I realized that I needed a dinosaur identification book for my five-year-old son, when I couldn't identify one of the three dinosaurs on a T-shirt that he wore recently. I guess in actually it's me that needs the dinosaur identification guide, so that I can better answer his questions.
This is a beautifully illustrated book with 26 dinosaurs to study (let's see...26 letters in the alphabet. Yeah, that works out.) At least there is no Buttasaurus in this particular kid's book.