Written by Nobel Prize in Economics Daniel Kahneman, Thinking, Fast and Slow (2011) which summarizes Kahneman's work over several decades first in cognitive bias, prospect theory, and finally, his work on happiness and what it means to be happy. The central thesis of Kahneman's book involves two things he calls "System 1" and "System 2." Key insights from Kahneman's book include: that he thinks too much value is placed in human judgement and humans can't really totally transform themselves into, for example, new and better people.
Upon release, Thinking, Fast and Slow was a massive critical and financial success (the book was also widely regarded in psychology circles). Galen Strawson of The Guardian called the book "An outstandingly clear and precise study of the 'dual-process' model of the brain and our embedded self-delusions." Christopher Shea of The Washington Post also liked the book, calling it "forceful," tremendous, and "intellectual." Since its release, Thinking, Fast and Slow sold over one million copies. It was also on The New York Times Bestseller List for a short time.