Erotic fiction is a part of erotic literature and a genre of fiction that portrays sex or sexual themes, generally in a more literary or serious way than the fiction seen in pornographic magazines. It sometimes includes elements of satire or social criticism. Such works have frequently been banned by the government or religious authorities. Non-fictional works that portray sex or sexual themes may contain fictional elements. Calling an erotic book 'a memoir' is a literary device that is common in this genre. For reasons similar to those that make pseudonyms both commonplace and often deviously set up, the boundary between fiction and non-fiction is broad.
Erotic fiction has been credited in large part for the sexual awakening and liberation of women in the 20th and 21st centuries.[where?][citation needed]