Planet Earth: Ultimate Sticker Books

I first bought this book at a local book store probably a year ago (we just ordered our 2nd one today); my son (now age 3) has seriously enjoyed this book for hours upon hours. There are hundreds of realistic (not cheesy) animal stickers plus background pages to place them on. He loves to look at and identify the animals and we have spent hours working on the animal pages TOGETHER (i.e. family time). FUN IDEA: we bought recycled notecards and envelopes and then stuck animals on them to make thank you notes or birthday cards - everyone that gets one later comments on how cool it is to get a card made by my son and I even see them hanging on their refrigerators months later.