Michael Lewis 
Undoing Project 
A Friendship that Changed the World

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 Mc Cartney … Lewis is exactly the storyteller they deserve‘ Observer