Haig's new book is The Midnight Library.
At the Guardian he tagged five books that helped him to build mental resilience, including:
Rachel Clarke weaves together an account of her training as a doctor who came to specialise in palliative care, the stories of her patients, and her father’s death in Dear Life. I read it while coming to terms with the death of a family friend, and found it full of honesty and tender wisdom about life and the process of dying. It managed the brilliant and paradoxical feat of helping you love life a little more and fear death a little less.Read about another entry on the list.
--Marshal Zeringue