John Campbell’s first book, published nearly thirty years ago, was a study of Lloyd George, entitled The Goat in the Wilderness. Now, having written important biographies of Margaret Thatcher and Edward Heath, Campbell has returned to Lloyd George. Once seen as a political giant, his stock has fallen since Campbell first wrote, and Churchill now stands unchallenged as man of the century. Except, perhaps, in one respect. For as this fascinating book reveals, LG was the first modern politician in one important sense: he had an affair with his secretary.