Maynard Keynes: An Economist's Biography by Donald Moggridge
The definitive biography of the most important economist of this century - Keynes is uniquely interesting. As well as being an economic theorist, he had a major influence on political and economic policy, both during his lifetime and afterwards, and was a member of the Bloomsbury group
Moggridge is uniquely qualified to write the biography. He spent twenty years editing Keynes' papers, which he knows better than anyone else. He also wrote an introductory book on the subject
Lots of scurilous material - Keynes was the only great gay English economist to marry a Russian ballerina - Keynes kept a coded record of his sex life, which Moggridge was the first to discover, and which is reproduced in the book