Actor Bill Paterson and tech philosopher Tom Chatfield join Harriett Gilbert' to discuss their favourite books by Christopher Hitchens, Terry Pratchett and Dava Sobel.
Small Gods by Terry Pratchett
Publisher: Corgi
Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time by Dava Sobel
Publisher: Harper Perennial
Mortality by Christopher Hitchens
Publisher: Atlantic Books
First broadcast on BBC Radio 4 in June 2017.
