Keynes was born in a time when economic progress was taken for granted. Britain's position at the head of a world trading system seemed secure. ‘The life’ examines Keynes's background, early life, education, and career. It considers how he came to economics as a field of study and what formed the basis of his ideas. He didn't manage to produce a major work of theory until he was almost fifty years old. His General Theory changed the way that most economists understood the working of the economy. It had a revolutionary effect on policy. Following its publication, Keynes became the most influential figure in British economic policy.