Gigantic!: How Big Were the Dinosaurs?

By studying the dinosaur bones discovered over the last two hundred years, scientists have an idea of how big some of the dinosaurs were. Now dinosaur fans of all ages can see for themselves exactly what "big" means. Vivid and exciting, Gigantic! puts some of children's favorite dinosaurs head-to-head with monster trucks, cherry pickers, and tanks.

As a child, Patrick O'Brien was fascinated by the illustrations of prehistoric animals in children's books. This lifelong fascination has grown as he continues to study and paint these giants of the past. In this book, accessible to even the youngest picture-book readers, his realistic, highly detailed illustrations easily convey size, and provide a fascinating study of the giants who once ruled the earth.