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Ryan Palmer shares his chips – sorry – tips for finding the perfect skimming stone

We review the third of this year’s nominees for Book of the Year

And will we soon all be out of a job? Kevin Buzzard worries us all.

Yiannis Petridis connects square roots and continued fractions

How can we teach people about the sieve in a way that helps them best understand prime numbers?

What happens if you play the prisoners' dilemma against yourself?