Question: What novel was written by an American writer best known for his postmodernist and metafictional fiction?

Context paragraphs:
E. C. Myers: Eugene Myers, pen name E. C. Myers, is an American writer best known as the writer of the 2012 Andre Norton Award-winning Young Adult (YA) science fiction novel "Fair Coin", and his 2014 YA hacktivist novel "The Silence of Six".  Myers is a graduate of the Clarion West Writers Workshop.

John Barth: John Simmons Barth ( ; born May 27, 1930) is an American writer, best known for his postmodernist and metafictional fiction.

Phyllis Reynolds Naylor: Phyllis Reynolds Naylor (born January 4, 1933) is an American writer best known for children's and young adult fiction.  Naylor is best known for her children's-novel quartet "Shiloh" (a 1992 Newbery Medal winner) and for her "Alice" book series, one of the most frequently challenged books of the last decade.

The Iron Dream: The Iron Dream is a metafictional 1972 alternate history novel by American author Norman Spinrad.  The book has a nested narrative that tells a story within a story.  On the surface, the novel presents an unexceptional pulp, post-apocalypse science fiction action tale entitled "Lord of the Swastika".  However, this is a pro-fascism narrative written by an alternate-history Adolf Hitler, who in this timeline emigrated from Germany to the United States in 1919 after the Great War, and used his modest artistic skills to become first a pulp–science fiction illustrator and later a successful science fiction writer, telling lurid, purple-prosed adventure stories under a thin science fiction-veneer.

Christopher Hinz: Christopher Hinz (born March 10, 1951) is an American writer best known for the Paratwa science fiction trilogy.  Hinz has also written comic book for DC Comics and Marvel Comics.  He won the Compton Crook Award in 1988 for his novel "Liege-Killer".

Jack Dann: Jack Dann (born February 15, 1945) is an American writer best known for his science fiction, an editor and a writing teacher, who has lived in Australia since 1994.  He has published over seventy books, in the majority of cases as editor or co-editor of story anthologies in the science fiction, fantasy and horror genres.  He has published nine novels, numerous shorter works of fiction, essays and poetry and his books have been translated into thirteen languages.  His work, which includes fiction in the science fiction, fantasy, horror, magical realism and historical and alternative history genres, has been compared to Jorge Luis Borges, Roald Dahl, Lewis Carroll, J.G. Ballard and Philip K. Dick.

The Tidewater Tales: The Tidewater Tales is a 1987 novel by the American writer John Barth.  Its narrative is told from the shared perspectives of Peter Sagamore and Katherine Sherritt Sagamore, a well-coupled couple in their 8 and a half month of pregnancy in the summer of 1980.  Peter Sagamore is a gifted author, whose gifts, we learn early on, have been dwindling in recent years due to a malignant relationship with "the demon Less is More".  His fiction has fizzled from sprawling works to solitary words on a page, and his career has followed suit.  His wife, Katherine, herself a storyteller by trade, sets him a task at his beckon: She asks him to take them sailing, and to tell her the tale of a couple much like them in manner and make and in their reckless decision to go sailing at such a delicate time in her pregnancy.  The result is "The Tidewater Tales: a novel", or, the story of the stories these two storytellers swap whilst sailing in their ship, Story, atop the waters of the Chesapeake Bay.

Jennifer Brown (author): Jennifer Marie Brown (born May 11, 1972) is an American writer best known for teen fiction including her debut novel "Hate List" (2009).  At least from 2013 she also writes fiction under the name Jennifer Scott.

Locos: Locos: A Comedy of Gestures is the first novel of Spanish-born American writer Felipe Alfau (1902–1999), written in 1928 published in 1936.  The metafictional novel remained out of print until 1988 when it was reprinted by Dalkey Archive Press; its positive reception then led to the publication of Alfau's second novel "Chromos" in 1990, which he had written in 1948.

Chimera (Barth novel): Chimera is a 1972 fantasy novel written by American writer John Barth, composed of three loosely connected novellas.  The novellas are "Dunyazadiad", "Perseid" and "Bellerophoniad", whose titles refer eponymously to the mythical characters Dunyazad, Perseus and Bellerophon (slayer of the mythical Chimera).  The book is an example of postmodernism, which can be seen in its metafictional content and its incorporation of stylistic elements that go beyond the traditional novel genre.  It shared the U.S. National Book Award for Fiction with "Augustus" by John Edward Williams.

Supporting paragraphs: The Tidewater Tales John Barth
Answer: The Tidewater Tales