The book "Time and Clocks: A Description of Ancient and Modern Methods of Timekeeping" takes a detailed look at the history of timekeeping from ancient times to the present day. The author, Sir Henry Harding Cunningham, takes a detailed look at the evolution of clocks and methods of timekeeping, helping the reader to better understand how mankind arrived at the current methods of timekeeping. The book contains many interesting facts about the development of clocks, sleep clocks, hourglasses and other devices that were used to measure time. "Time and Clocks" will be a useful source of information for anyone interested in the history and technology of time measurement.