Malcolm Mackay's Glasgow Trilogy set the crime writing world alight last year, and his new novel, The Night the Rich Men Burned, is out in August.
'There's no clear line between sanity and insanity; there's a spectrum and we all go up and down.'
Tanya Byron takes us behind the doors of clinical psychology.
Will Robie returns in his toughest mission to date.
Richard Wiseman reveals some life-changing new science on sleep and dreaming