Juliet Gardiner is a British historian and a commentator on British social history from Victorian times through to the 1950s. She is a former editor of History Today magazine and the author of several history books, including the Penguin Book of History (2000) and The Thirties: An Intimate History. She acted as historical consultant to the film of Atonement, and is a frequent broadcaster on radio and television, a reviewer and a contributor to the national press, including The Sunday Times, Sunday Telegraphy Financial Times, The Guardian and BBC History.