Step back in time to a lost world. This exciting series explores all there is to know about some of the most amazing dinosaurs to have walked the earth. With easy-to-read text and informative diagrams this series is ideal for younger readers.|Step back in time to a lost world. This exciting series explores all there is to know about some of the most amazing dinosaurs to have walked the earth. With easy-to-read text and informative diagrams this series is ideal for younger readers.