Mark Billingham is one of the UK’s most acclaimed and popular crime writers. His series of novels featuring DI Tom Thorne has twice won him the Crime Novel of the Year Award and his debut novel, Sleepyhead was chosen by the Sunday Times as one of the 100 books that had shaped the decade. The Killing Habit is out now in paperback and the next Thorne novel, Their Little Secret is published in May 2019.