I got this for a one year olds birthday, but want to buy one for my 3 and 7 year olds, too! I even learned some new things from it! This is not your typical ABC book. There is the perfect amount of info on each ocean animal, not overwhelming for little ones, but enough to keep it interesting for older kids. The pictures are beautiful and should definitely hold children's attention. This is the type of book that will keep a place in a child's library for quite a few years. Oh, and it's quite large. I didn't check the dimensions, but for the price I was expecting a much smaller book.I'll be buying several copies of this, as well as the others in the series and giving them as gifts. Will probably become my standby for very young children. It's really a great bang for your buck. I hope to see more children's books from theAMNH.