I just got this book, I ordered for my 9 year old son who begins to ask questions. I think it's good to have a medium to talk with children. I looked at him before giving him, because I read comments like what there was shocking images. Well not at all, I find it very well. The images are drawings, which I think are quite suitable, while being realistic. The explanations are quite suitable for children of this age. I recommend this book !!!