My 2 1/2-year old son fell in love with this book. The flaps pull out not once, but twice on each page to reveal more of the story. Colorful, sturdy pages (but not cardboard). Not a good choice for those under two, in my opinion, simply because of the delicate nature of the flaps. My son destroyed almost every book he got his hands on as a young toddeler, but by 2 1/2 he was able to handle this book without incident.