I bought this as a gift for my 6 year old nephew who loves animals. It was a big hit! He loved all of the photos and facts and spent most of the day going through it and showing others the strange animals he found. I had a chance to look through it and think it works well for younger kids because there are tons of pictures and each has a small paragraph (or less) about the animal. I think it's a good way to get kids interested in the world around them. My nephew found many animals and places he wanted to learn more about.