First published in 1969, How the World Changed: Volume 2 1939-1968 is the second of two volumes that together outline the political history of the twentieth century up to 1968.

This volume covers the period from 1939-1968 and examines the history and politics of the Second World War and the state of the world in the years that followed it, including economic recovery, Soviet expansion, the Chinese People's Republic, and shifts in world power.