The optimism bias: reasons to be cheerful Neurologist Tali Sharot tells Carole Cadwalladr how she discovered the optimism bias, and how it helps to keep people feeling happier
James Hillman obituary US psychologist who concluded that therapy needed to change the world rather than focus on people's inner lives
Pass notes No 3,098: Herman Van Rompuy The president of the European Council is spreading a little happiness among his fellow world leaders this year
Christmas gifts 2011: which books will be under your tree? Our critics choose the books they intend to give this Christmas, and the ones they hope to receive
The Brain is Wider Than the Sky by Bryan Appleyard – review Are we wrong to compare our brains to our technology? By Simon Ings
Guardian First Book award shortlist: Siddhartha Mukherjee Siddhartha Mukherjee introduces The Emperor of All Maladies
The Emperor of All Maladies by Siddartha Mukherjee – review Siddhartha Mukherjee's masterly 'biography of cancer' makes for a great story, as well as an important history of scientific progress, writes Sarah Boseley
Rob Buckman obituary Oncologist, writer and broadcaster who investigated medical matters with humour and zest
What is Madness? by Darian Leader – review Darian Leader's study of madness contains superb insights but leaves Alexander Linklater with a sense of hopelessness
What Is Madness? by Darian Leader – review How best to treat mental disorder? Jacqueline Rose admires a new manifesto
Vertigo: One Football Fan’s Fear of Success by John Crace – review A Spurs fan and depressed? Danny Kelly can understand
Bobby Baker diary wins Mind Book of the Year Diary Drawings: Mental Illness and Me praised by judges as an 'astonishing insight' into the author's experiences