What an OUTSTANDING book!! We like Gail Gibbons but often find her books a bit wordy for our newly 3-year old. It's not a problem to just talk about the photos or edit narrative for the age of the child, of course, but the perfect balance of this book, BATS, is what makes it such a fabulous find. The illustrations are both realistic and varied, and the narrative strikes the perfect balance between presentation of interesting and relevant fact, and length of text. Our daughter loves bats and this was a perfect book for our family. HIGHLY RECOMMENDED!! In our opinion, approx. age range 2.5 - 8 years.