PENGUIN PUTNAM

Travel back to the time when the mighty dinosaurs ruled the earth.The Age of Dinosaurs began about 250 million years ago. In the beginning they wer...

Dig into dino-mite activities with tons of crosswords, sudokus, word searches, and other brain-tickling games in this fun-fact-filled puzzle book a...

New discoveries await inside this Hidden Pictures puzzle book! Featuring over 100 science-themed scenes and more than 1,800 hidden objects to find ...