Interviews with the six authors shortlisted for the UK's premier non-fiction prize.
Jonathan Bate talks about his book Ted Hughes: The Unauthorised Life.
Robert Macfarlane talks about his book Landmarks.
Laurence Scott talks about his book The Four-Dimensional Human.
Writer Steve Silberman talks about Neurotribes, his book about autism
Emma Sky talks about The Unraveling: High Hopes and Missed Opportunities in Iraq.
Samanth Subramanian talks about his book This Divided Island.
