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THE NEW INTERNATIONAL BESTSELLER FROM THE AUTHOR OF THE BIG SHORT AND FLASH BOYS

'A gripping account of how two psychologists reshaped the way we think ... What a story it is' Sunday Times
'You'll love it ... full of surprises and no small degree of tragedy' Tim Harford

In 1969 two men met on a university campus. Their names were Daniel Kahneman and Amos Tversky. They were different in every way. But they were both obsessed with the human mind - and both happened to be geniuses. Together, they would change the way we see the world.

'An enchanted collaboration ... During the final pages, I was blinking back tears' The New York Times

'My favourite writer full stop. Engages both heart and brain like no other' Daily Telegraph

'Brilliant, a wonderful book, a masterclass' Spectator

'Psychology's Lennon and McCartney ... Lewis is exactly the storyteller they deserve' Observer