I was advised by a homeschooling guide to buy this book for my science classes some time ago. I am pleased to say that I did not regret the decision I made to purchase it, as this is an excellent book! At first, I was surprised that a coloring book would be recommended as an educational tool for a first year high school student, but it was actually very helpful to me. Once I was finished completing it, I was delighted to see how vivid and realistic the illustrations became. So delighted that I bought a copy for my younger siblings to try (aged 7-10). Unfortunately they found it a little too daunting, so I'd have to say that it's not the best book for a ten year old or younger. However, if you're looking for a challenging, educational book for a student aged eleven or up, then you should try this one. You might even find yourself picking up a marker and coloring with him.