If you've got maths friends then you might have noticed that a large subset of them are also *Simpsons* fans. And there's a good reason for that: as Simon Singh's book *The Simpsons and their mathematical secrets* explains, a large number of *Simpsons* writers are mathematicians. The book explores the maths that has been hidden (and not so hidden) throughout the series and will make a great present for maths/*Simpsons* nerds.

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