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

We announce the winner of this coveted prize

The definitive chart of the best units

Zoe Griffiths on the life of e

Staring at your coffee, you wonder whether the light reflecting in cup really is a cardioid curve...

Tuesday 11 October, 7.15pm. Come along! Featuring hundreds of free copies of Chalkdust, free pizza, and the chance to purchase a Chalkdust T-shirt.