The New Penguin Dictionary of Modern History 1789-1945 by Duncan Townson
This well-written dictionary covers the period 1789-1945. It has longer articles on keywords than most of its competitors and has been well reviewed: 'There is one book on my study desk that I cherish more than any other. It is The Penguin Dictionary of Modern History' - Brian MacArthur, The Times. 'An invaluable, user-friendly reference book, designed to appeal to all ages' - Radio Times.