Lesbian pulp fiction is a genre of lesbian literature that refers to any mid-20th century paperback novel or pulp magazine with overtly lesbian themes and content. Lesbian pulp fiction was published in the 1950s and 60s by many of the same paperback publishing houses that other genres of fiction including westerns, romances, and detective fiction. Because very little other literature was available for and about lesbians at this time, quite often these books were the only reference the public (lesbian and otherwise) had for modeling what lesbians were. Stephanie Foote, from the University of Illinois commented on the importance of lesbian pulp novels to the lesbian identity prior to feminism: "Pulps have been understood as signs of a secret history of readers, and they have been valued because they have been read. The more they are read, the more they are valued, and the more they are read, the closer the relationship between the very act of circulation and reading and the construction of a lesbian community becomes...Characters use the reading of novels as a way to understand that they are not alone."
These books were sold at drugstores, magazine stands, bus terminals and other places where one might look to purchase cheap, consumable entertainment. The books were small enough to fit in a purse or back pocket (hence both the brand-name and the generalized term "pocket books") and cheap enough to throw away when the reader was through with it.
In the early to mid 20th century, only a handful of books were published that addressed lesbians as characters in relationships with women. Those notable novels were published in hardcover and were as follows:
During World War II, the military distributed small paperbacks to its forces, causing a large population of Americans to become accustomed to having access to cheap books and thus creating a demand for the same easy access to reading material when the soldiers returned home. As a result, in the years after the war, there appeared a new and often subversive trend in publishing that allowed for books to be written, cheaply produced, and widely distributed using technology previously unavailable. These books were dubbed "pulp" fiction because they were inexpensive and usually sensational or low-brow, much like the "pulp" magazines of the first half of the 20th century. Pulps were not necessarily "low brow." Many pulp authors are now celebrated with commemorative hardcover editions. These mass market paperbacks, printed and bound on cheap paper, often addressed "dirty" topics like drugs, gangs, white slavery, crime, murder, and homosexuality. Because the literature was not respected, it was not censored as readily, although most of the larger paperback publishers were wary of postal censorship, and, for instance, took care not to publish works that were overly supportive of "deviant" lifestyles. In terms of lesbian fiction, these books were the only ones available in many locations to people who had no previous access to information or stories that involved lesbian characters.