I ordered this for my eight year olds school project and she loved it. It was easy to flick through to look up information and well illustrated. It had a good balance of information and pictures with enough detail to be interesting but not to much which would be overwhelming.
A VERY INTERESTING BOOK. Easily understandable for all ages. Much more pleasurable than some of the dry times written about the subject. I recommend it too anyone that wants a knowledge without being sent to sleep.