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This book definately had some very interesting things in it. My only 2 complaints were that there were several scientific concepts that Kean explained in this book that I don't think I would have understood if I didn't have a science background, and it was a little dry in some places. It had a lot more about people and a lot less about elements than I had expected. Overall, it was a very interesting read, and I feel like I do understand some concepts much better than I did when I started.