A collection of prominent atheists give their humorous and serious tips for surviving the Christmas season. Last year, Guardian journalist Ariane Sherine launched the Atheist Bus Campaign as a reassuring response to unsettling religious advertising running on London buses. Having gained the support of Richard Dawkins and the British Humanist Association, she aimed to raise just GBP5,500 from public donations, yet ended up raising over GBP150,000 - enough to place the advert 'There's probably no God. Now stop worrying and enjoy your life' on 800 buses across the UK in January 2009. Now Ariane and dozens of other atheist writers, comedians and scientists are joining together to raise money for a very different cause. The Atheist's Guide to Christmas is a funny, thoughtful handbook all about enjoying Christmas, from 42 of Britain's most entertaining atheists. It includes everything from an atheist Christmas miracle to a guide to the best Christmas pop hits, and contributors include Richard Dawkins, Charlie Brooker, Ben Goldacre, Jenny Colgan, David Baddiel and Richard Herring. The full book advance and all royalties will go to charity.