The authors are well known as mathematical expositors, and produce about a book a year. This is their 2014 offering, with the subtitle ‘A Treasure Trove of Unexpected Entertainments'. It looked like just the sort of book I like: full of interesting tit-bits, discussions, exploration of some of the curious by-ways of mathematics, elementary topics outside the standard high school syllabus—a sort of grab-bag, if you like, of elementary mathematics. There's certainly a great deal in it, but sometimes I felt that there was almost too much, and that some topics merited greater depth than they received.
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