Jo Cartwright is the publicity manager for Dignity in Dying, the London-based charity which is fighting to change the law on assisted dying in the UK and internationally. Lesley Mary Close is a patron and spokesperson of Dignity In Dying. Sir Terence David John Terry Pratchett, OBE is an English author of fantasy novels, especially comical works. He is best known for the Discworld series of about 40 volumes. He has sold more than 85 million books worldwide in 37 languages.