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A chance conversation at the British Dental Journal stand at an international meeting led to the idea of using the letters 'B', 'D' and 'J' in different formats for the Journal covers. Each cover would feature the letters in a different media or setting. The idea gained momentum and in December 2015 the first pictures were taken. There were so many ideas for different pictures and these had to be narrowed down to a final 12, one for each cover in volume 221. Cover series photographer Damien Walmsley on the cover of this particular issue: 'One of the first ideas for the letters was to use fridge magnets. An order of three tubs of magnets was placed, and the tubs delivered to my daughter's house in Rugby, where there was much amusement in the family as the fridge was decorated with them. This was a very educational photographic shoot and now my granddaughter has access to a complete set of fridge magnets which are being used as a learning tool.'