Tijuana bible comic books were most popular during the Great Depression era and into the 1950s. Their popularity eventually gave way to publications that featured nude photographs and were more accessible, such as Playboy magazine.
Tijuana bible was a nickname for illegally published cartoon comic books that often featured popular cultural icons and celebrities in pornographic situations. These books were hand drawn by various artists, and the quality of the work varied, as well, from childish humor and drawings to more sophisticated artistry and erotica. Since the sale of Tijuana bibles was widely illegal, police often raided stores or retailers who were suspected of selling them secretly to customers.