Recommended age group is age 7-11. This book is written for the young mind that is curious about the world around them and with a desire to learn about everything whether it's insects, games, volcanoes, or airplanes. It is written about a subject that is often misunderstood by adults - UFOs. As your child reads this book, they will learn about more than just UFOs. They will learn how to apply scientific reasoning, new words, and a little science and history in the process. But most importantly, your child will be challenged to think about the world around themselves and not just in black and white, or yes and no. The book shows them that it is important to keep an open mind and that sometimes we must view the world in shades of gray. In the back of the book is a vocabulary list to help the young reader with any words that might be a challenge.