Tarzan and the Madman, originally published in 1964, is the 23rd in a series of 24 jungle adventure novels featuring the fictional character Tarzan, written by Edgar Rice Burroughs (1875–1950) and published between 1912 and 1966. (There are also several additional novels either co-written by Burroughs, or officially authorized by his estate, plus two works written by Burroughs especially for children that are not considered part of the main series.) The astute reader will note that Tarzan and the Madman first appeared fourteen years after Burroughs' death. Written from January to February 1940, the story was never published in Burroughs' lifetime.