Sir Lewis Namier (1888–1960) was not only a major twentieth-century historian, a pioneer of ‘scientific history’ who gave his name to a particular form of history-writing, but an important public intellectual. He played a significant role in public affairs, as an influential adviser to the British Foreign Office during the First World War and later as an active Zionist. This article offers a new perspective on his life and work by providing, for the first time, as comprehensive a bibliography as is currently possible of his voluminous writings: books, scholarly articles and contributions to periodicals and newspapers, including many hitherto unknown, and some published anonymously. The annotation includes not only bibliographical information but explanations and brief summaries of the content. The introduction gives an account of Namier’s life and an assessment of his significance as a historian and thinker.