The Long Week-End is a social history of interwar Britain, written by Robert Graves and Alan Hodge. It was first published in 1940, just after the end of the period it treats.
Their story covers a wide range of popular and social themes, including politics, business, science, religion, art, literature, fashion, education, popular amusements, domestic life, sexual relations, and much else.  It has come to be regarded as a classic of its kind, though not so famous as Graves's book Good-Bye to All That.
The Long Week-End has gone through several reprints, the latest in 1994.