For those that missed it: http://www.bbc.co.uk/radio4/factual/ontheropes.shtml?focuswin Click on the listen again link. "Terry Pratchett has sold more than 55 million books worldwide. He was the UK’s best selling author until JK Rowling came along, he’s been awarded an OBE and won the prestigious Carnegie Medal for Literature. He’s a multi-millionaire and his fans love him - and he has an awful lot of them. But he hasn’t got his health. He’s been diagnosed with a rare form of Alzheimer’s disease at the age of 60. For this week’s On The Ropes he talks to John Humphries about his life, his work and how he’s coping with a disease that - so far - has no cure. "