It would be later adapted into a critically acclaimed Academy Award nominated film in 2005. The founding of the Lambda Literary Award in 1988 helped increase the visibility of LGBT literature. 21st century In the 21st century, much of LGBT literature has achieved a high level of sophistication and many works have earned mainstream acclaim. Notable authors include Alan Hollinghurst, Michael Cunningham, Colm Tóibín, John Boyne, and Andrew Sean Greer. Greer, an openly gay man, won the 2018 Pulitzer Prize for Fiction for Less. LGBT themes have also become more visible in a growing body of high-quality young adult literature, with notable authors including Alex Sánchez, Stephen Chbosky, Shyam Selvadurai, Perry Moore, Adam Silvera, Benjamin Alire Sáenz, and David Levithan. Becky Albertalli's teen novel Simon vs. the Homo Sapiens Agenda was adapted into the feature film Love, Simon by 20th Century Fox, the first film by a major studio focused on a gay teenage romance. Casey McQuiston's Red, White & Royal Blue is another example of young adult gay and bisexual romantic fiction, and is currently on the works of a film adaptation by Amazon Studios. Gay pulp Gay pulp fiction or gay pulps, refers to printed works, primarily fiction, that include references to male homosexuality, specifically male gay sex, and that are cheaply produced, typically in paperback books made of wood pulp paper; lesbian pulp fiction is similar work about women. Michael Bronski, the editor of an anthology of gay pulp writing, notes in his introduction, "Gay pulp is not an exact term, and it is used somewhat loosely to refer to a variety of books that had very different origins and markets" People often use the term to refer to the "classic" gay pulps that were produced before about 1970, but it may also be used to refer to the gay erotica or pornography in paperback book or digest magazine form produced since that date. Speculative fiction Homosexuality in speculative fiction refers to the incorporation of homosexual themes into science fiction, fantasy, horror fiction and related genres which together constitute speculative fiction. Such elements may include a lesbian, gay, bisexual or transgender (LGBT) character as the protagonist or a major character, or exploration of varieties of sexual experience that deviate from the conventional. Science fiction and fantasy have traditionally been puritanical genres aimed at a male readership, and can be more restricted than non-genre literature by their conventions