Been on a dinosaur hunt this morning & came across this book at amazon, seems to be the cheapest around by quite a bit & has great reviews. Thought it looked good value for the contents, 64 pages includes 20 scratch-off, 20 illustrated, 20 sketch pages. dig up fun facts about these Dino Dudes as you trace simple sketches of 20 awesome prehistoric creatures. Ages 5 and up. White outlines on black scratch-off pages create a fun way for younger children to trace illustrations. Shrink-wrapped with a wooden stylus for drawing on black-coated paper to reveal colours beneath. 16.2 cm wide x 21.6 cm high; wire bound hardcover.