- How We Lived Then
- If Britain Had Fallen
- Alive and Well: A history of medicine and public health from 1830 to the present day, Penguin, UK, 1970 ISBN 0-14-080028-X
- Defending the Island: From Caesar to the Armada, Pimlico, 2001, ISBN 0-7126-6711-3
He wrote the book Hitlers's Rockets ( The story of the v-2s).