Sean O'Hagan: Captivated by the plight of Piero and his family living in a swamp outside Rome, the Italian photographer created a book that casts them in an eerily beautiful light
Marina Hyde: Alain de Botton believes his new philosopher friend and One Direction star could boost the UK's intellectual capacity almost single-handedly. All Harry needs is help from David Beckham
Emma Woolerton: How to believe: A life too long lived is a misery in itself. When the body dies, the soul disperses as it is mortal like the world around us
Emma Woolerton: How to believe: The atomic swerve is a simple idea that explains both the existence of the world and our ability to act freely within it