Woman on the Edge of Time (New York: Alfred A. Knopf, 1976) is a novel by Marge Piercy.
 It is considered a classic of utopian "speculative" science fiction as well as a feminist classic.
Ivan E. Coyote (born August 11, 1969 in Whitehorse, Yukon) is a Canadian spoken word performer, writer, and LGBT advocate.
 Coyote has won many accolades for their collections of short stories, novels, and films.
 Coyote also visits schools to tell stories and give writing workshops.
 The CBC has called Coyote a “gender-bending author who loves telling stories and performing in front of a live audience.”
 Coyote is non-binary and uses "singular they" pronouns.
 Many of Coyote’s stories are about gender, identity, and social justice.
 Some of their favorite books are "Women on the Edge of Time" by Marge Piercy and "The Chronology of Water" by Lidia Yuknavitch.
 Coyote currently resides in Vancouver, BC.
He, She and It (published under the title Body of Glass outside the USA) is a cyberpunk novel by Marge Piercy published in 1991.
 It won the Arthur C. Clarke Award for Best Science Fiction novel in 1993.
 The novel examines gender roles, human identity and AI, political economy, environmentalism, love, and storytelling through a suspenseful plot, set in a post-apocalyptic America, of the romance between a human woman and the cyborg created to protect her community from corporate raiders.
The Reef is a 1912 novel by American writer Edith Wharton.
 It was published by D. Appleton & Company.
 It concerns a romance between a widow and her former lover.
 The novel takes place in Paris and rural France, but primarily features American characters.
 While writing the novel, Edith Wharton visited England, Sicily, and Germany, among other locations.
 In a letter to Bernard Berenson in November 1912, Wharton expressed regret regarding her novel, calling it a “poor miserable lifeless lump”.
 She wrote, “Anyhow, remember it’s not me, though I thought it was when I was writing it—& that next time I’m going to do something worthwhile!!”
The House of Mirth (1905), a novel by Edith Wharton (1862–1937), tells the story of Lily Bart, a well-born but impoverished woman belonging to New York City’s high society around the turn of the last century.
 Wharton creates a portrait of a stunning beauty who, though raised and educated to marry well both socially and economically, is reaching her 29th year, an age when her youthful blush is drawing to a close and her marital prospects are becoming ever more limited.
 "The House of Mirth" traces Lily’s slow two-year social descent from privilege to a tragically lonely existence on the margins of society.
 In the words of one scholar, Wharton uses Lily as an attack on "an irresponsible, grasping and morally corrupt upper class."
The Age of Innocence is Edith Wharton's twelfth novel, initially serialized in four parts in the "Pictorial Review" magazine in 1920, and later released by D. Appleton and Company as a book in New York and in London.
 It won the 1921 Pulitzer Prize for Fiction, making Wharton the first woman to win the prize.
 Though the committee initially agreed to award the prize to Sinclair Lewis, the judges rejected his "Main Street" on political grounds and "established Wharton as the American 'First Lady of Letters'", the irony being that the committee had awarded "The Age of Innocence" the prize on grounds that negated Wharton's own blatant and subtle ironies, which constitute and make the book so worthy of attention.
 The story is set in upper-class New York City in the 1870s, during the Gilded Age.
 Wharton wrote the book in her 50s, after she had established herself as a strong author with publishers clamoring for her work.
Marge Piercy (born March 31, 1936) is an American poet, novelist, and social activist.
 Her work includes "Woman on the Edge of Time"; "He, She and It", which won the 1993 Arthur C. Clarke Award; and "Gone to Soldiers", a New York Times Best Seller and sweeping historical novel set during World War II.
Edith Wharton ( ; born Edith Newbold Jones; January 24, 1862 – August 11, 1937) was an American novelist, short story writer, and designer.
 Wharton combined an insider's view of American aristocracy with a powerful prose style.
 Her novels and short stories realistically portrayed the lives and morals of the late nineteenth century, an era of decline and faded wealth.
 She won the Pulitzer Prize for Literature in 1921, and was the first woman to receive this honor.
 Wharton was acquainted with many of the well-known people of her day, both in America and in Europe, including President Theodore Roosevelt.
"Afterward" is a short story by American writer Edith Wharton.
 It was first published in the 1910 edition of "The Century Magazine".
 and later reprinted in her books " The Collected Short Stories of Edith Wharton" and "Tales of Men and Ghosts" (1910).
 It is an ironic ghost story about greed and retribution.
 The ghost comes for one of the main characters long after a business transgression where the character wronged another.
Going Down Fast (ISBN  ) is a 1969 novel by Marge Piercy.
 It tells the story of Anna, a woman living with multiple losses; Rowley, a blue-eyed soul singer; Leon, an underground film-maker; and Caroline, a woman with a dark secret.
 They all live in an area of an unnamed city where a swathe of blocks are being demolished to make way for a university.

Question: Who's work includes "Woman on the Edge of Time", Edith Wharton or Marge Piercy?
Answer: Marge Piercy