Why willpower matters – and how to get it Willpower is a mental muscle that you can train. Those who do so are more likely to lead happy and successful lives
A Shed of One’s Own by Marcus Berkmann – review Marcus Berkmann gets to the heart of the male midlife crisis with insight, humour and some worrying maths, writes William Leith
Maximum Willpower: How to master the new science of self-control, by Kelly McGonigal; Willpower: Rediscovering Our Greatest Strength, by Roy F Baumeister and John Tierney – review Who can resist the temptations of our times? If you can you've got it made, say two books on the importance of willpower. By Carole Cadwalladr
Religion for Atheists by Alain de Botton – review Alain de Botton's attempt to encourage secular society to steal religion's most fruitful ideas is admirable but ultimately hollow, says Richard Coles
Calories & Corsets: A History of Dieting Over 2,000 Years by Louise Foxcroft – review Atkins, Hay, Dukan – are they all the same? By Kathryn Hughes
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