Genre ( /ˈʒɒnrə/ or /ˈdʒɒnrə/; from French, genre French pronunciation: [ʒɑ̃ʁ], "kind" or "sort", from Latin: genus (stem gener-), Greek: genos, γένος) is the term for any category of literature or other forms of art or entertainment, e.g. music, whether written or spoken, audial or visual, based on some set of stylistic criteria. Genres are formed by conventions that change over time as new genres are invented and the use of old ones are discontinued. Often, works fit into multiple genres by way of borrowing and recombining these conventions.

The concept of genre originated from the classification systems created by Aristotle and Plato. Plato divided literature into the three classic genres accepted in Ancient Greece: poetry, drama, and prose. Poetry is further subdivided into epic, lyric, and drama. The divisions are recognized as being set by Aristotle and Plato; however, they were not alone. Many genre theorists contributed to these universally accepted forms of poetry. Similarly many theorists continued to philosophize about genre and its uses, which caused genre as Plato and Aristotle knew it to evolve and further expand.

Don Hertzfeldt (born August 1, 1976) is the creator of many short animated films, including Everything Will Be OK and the Academy-Award nominated Rejected. His animated films have received over 150 awards and have been presented around the world. Before the age of thirty, his films were already the subject of several career retrospectives. He was the youngest director named in the "They Shoot Pictures, Don't They" list of "The 100 Important Animation Directors" of all time, and in 2010 he received the San Francisco International Film Festival's "Persistence of Vision" Lifetime Achievement Award at the age of 33.

In 2012, Hertzfeldt was ranked # 16 in an animation industry and historian survey of the "Top 100 Most Influential People in Animation."

The popularity of Hertzfeldt's work is unprecedented in independent animation and his films are frequently quoted and referenced in pop culture. In 2009, the Sundance Film Festival noted, "If cinephiles think shorts don't generate the same sort of hype and fanbase as feature films, they obviously haven't heard of Don Hertzfeldt."