Presented by Suzy Klein and Richard Coles.International rock star Bryan Adams talks about his career as a photographer with the likes of his musical hero Ray Charles and his latest project with wounded soldiers.Change and transformation, too, for Lee Spencer. An Afghanistan and Iraq veteran, he describes how he lost a leg - not on the battlefield but while being a good Samaritan on a British motorway.Turner prize winning artist Martin Creed talks about trousers with JP Devlin.Maths teacher turned stand-up comedian Matt Parker on how to cut a pizza with a mathematical formula so rigorous everyone gets exactly the same amount of topping.Kenny Clark is a football referee who in 2001 took charge of Africa's biggest and arguably most hotly contested derby. He explains how the Cairo showdown between Egyptian sides Al Ahly and Zamalek is so fierce that foreign referees are brought in.Tennis player turned romantic novelist Alice Peterson on how her sporting career was stopped in its tracks when she was diagnosed aged 18 with rheumatoid arthritis.And the Inheritance Tracks of John Peel's widow, Sheila Ravenscroft, who chooses Panis Angelicus by César Franck and You Little Thief by Feargal Sharkey.Wounded: The Legacy of War - A photography exhibition by Bryan Adams runs at the Terrace Rooms, Somerset House, London from 12 November 2014 - 25 January 2015.Martin Creed has contributed to Frieze's free sculpture park, which runs until 18 October.Things to Make and Do in the Fourth Dimension by Matt Parker, published by Particular Books.One Step Closer to You by Alice Peterson, published by Quercus Books.You can hear Sheila Ravenscroft talking to Jarvis Cocker about John Peel's legacy, both in tons of vinyl and the arts centre in Stowmarket named after him, on Radio 4 Extra this morning (sat) until 11.30am or from 7pm this evening.Producer: Louise Corley.