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Title: Not too technical, but not to elementary.
Review: Absolutely wonderful. This book should be titled "Obscure Math For Dummies," as it is always written so that a reader with basic mathematical background can understand it. I have read quite a bit of similar titles, but this is the ONLY one I would reccommend! The Mathematical Universe patches up holes of concepts that you never quite understood as well as introduces plenty of new math and its history. Loved the coverage of number theory.
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