実験文学

In the 1910s, artistic experimentation became a prominent force, and various European and American writers began experimenting with the given forms. Tendencies that formed during this period later became parts of the modernist movement. The Cantos of Ezra Pound, the post-World War I work of T. S. Eliot, prose and plays by Gertrude Stein, were some of the most influential works of the time, though James Joyce's Ulysses is generally considered the most essential work of the period. The novel not only influenced more experimental writers, such as Virginia Woolf, but also less experimental writers, such as Ernest Hemingway.

The historical avant-garde movements also contributed to the development of experimental literature in the early and middle 20th century. In the Dadaist movement, poet Tristan Tzara employed newspaper clippings and experimental typography in his manifestoes. The futurist author F.T. Marinetti espoused a theory of "words in freedom" across the page, exploding the boundaries of both conventional narrative and the layout of the book itself as shown in his sound poem "novel" Zang Tumb Tumb. The writers, poets, and artists associated with the surrealist movement employed a range of unusual techniques to evoke mystical and dream-like states in their poems, novels, and prose works. Examples include the collaboratively written texts Les Champs Magnétiques (by André Breton and Philippe Soupault) and Sorrow for Sorrow, a "dream novel" produced under hypnosis by Robert Desnos.

By the end of the 1930s, the political situation in Europe had made Modernism appear to be an inadequate, aestheticized, even irresponsible response to the danger of worldwide fascism, and literary experimentalism faded from public view, kept alive through the 1940s only by isolated visionaries like Kenneth Patchen. In the 1950s, the Beat writers can be seen as a reaction against the hidebound quality of both the poetry and prose of its time, and such hovering, near-mystical works as Jack Kerouac's novel Visions of Gerard represented a new formal approach to the standard narrative of that era. American novelists such as John Hawkes started publishing novels in the late 1940s that played with the conventions of narrative.

The spirit of the European avant-gardes would be carried through the post-war generation as well. The poet Isidore Isou formed the Lettrist group, and produced manifestoes, poems, and films that explored the boundaries of the written and spoken word. The OULIPO (in French, Ouvroir de littérature potentielle, or "Workshop of Potential Literature") brought together writers, artists, and mathematicians to explore innovative, combinatoric means of producing texts. Founded by the author Raymond Queneau and mathematician François Le Lionnais, the group included Italo Calvino and Georges Perec. Queneau's Cent Mille Milliards de Poèmes uses the physical book itself to proliferate different sonnet combinations, while Perec's novel Life: A User's Manual is based on the Knight's Tour on a chessboard.

The British Angry Young Men of the 1950s rejected experimentalism, but the 1960s brought a brief return of the glory days of modernism, and a first grounding of Post-modernism. Publicity owing to an obscenity trial against William S. Burroughs' Naked Lunch brought a wide awareness of and admiration for an extreme and uncensored freedom. Burroughs also pioneered a style known as cut-up, where newspapers or typed manuscripts were cut up and rearranged to achieve lines in the text. In the late 1960s, experimental movements became so prominent that even authors considered more conventional such as Bernard Malamud and Norman Mailer exhibited experimental tendencies. Metafiction was an important tendency in this period, exemplified most elaborately in the works of John Barth, Jonathan Bayliss, and Jorge Luis Borges. In 1967 Barth wrote the essay The Literature of Exhaustion, which is sometimes considered a manifesto of postmodernism. A major touchstone of this era was Thomas Pynchon's Gravity's Rainbow, which eventually became a bestseller. Important authors in the short story form included Donald Barthelme, and, in both short and long forms, Robert Coover and Ronald Sukenick. While in 1968 William H. Gass's novel Willie Masters Lonesome Wife added challenging dimensions to reading as some of the pages are in mirror writing where the text can only be read if a mirror is held in an angle against the page.

Some later well-known experimental writers