The largest photographic exhibition ever staged will take place at The Royal College of Art over the August bank holiday. Resulting from a collaboration between HP and children’s charity NCH, the exhibition consists of contributions to HP’s smile campaign, in which people were asked to contribute photographs of themselves smiling. The exhibition will attempt to break the Guinness World Record and each smile contributed will raise 25p for the NCH. The exhibition will run from 26th to 29th August at the Royal College of Art. There is still time to donate a smile; log onto www.hp.com.uk/smile to find out more.