Andrew Marr talks to Jonathan Franzen, hailed as a 'Great American Novelist' for his latest book, Freedom. Amidst the backdrop of the war on terror, environmental disaster and class war, Franzen chronicles the lives, choices and compromises of one family. The playwright Shelagh Stephenson also explores family tensions in her new play, about what happens when a missing child returns home. Philosophy is under attack as advances in neuroscience question many of its assumptions, and yet Barry Smith argues that the science of the mind needs philosophers now more than ever, to make sense of its new discoveries. And Robert Douglas-Fairhurst celebrates the great Victorian journalist Henry Mayhew and his captivating portraits of life on the streets of London.

Producer: Katy Hickman.