Title: Spar (short story)
Content:  "Spar" is a science fiction short story by American writer Kij Johnson, first published in Clarkesworld Magazine. It won the 2009 Nebula Award for short story, and was short-listed for the 2010 Hugo Awards.
Title: Katherine Sparrow
Content:  Katherine H. Sparrow is an author of middle-grade, young adult and adult speculative fiction active since 2006. She writes as Katherine Sparrow, and, on one occasion, Katharine Sparrow.
Title: Bud Sparhawk
Content:  John C. "Bud" Sparhawk (born August 11, 1937) is an American science fiction writer. He writes humorous science fiction, in particular the Sam Boone series of short fiction.
Title: Red Sparrow (novel)
Content:  Red Sparrow is a novel written by Jason Matthews, a former Central Intelligence Agency (CIA) operative, published by Scribner on June 4, 2013. The book describes the mundane aspects of the intelligence field, the techniques it employs, and Red Sparrow's unique ability to discern the nature of people by seeing their emotions in colors (through synesthesia).
Title: The Sparrow (novel)
Content: 1996, US, Villard ISBN: 978-0-679-45150-1, Pub date 9 September 1996, Hardcover ; 1996, US, Brilliance Corp ISBN: 978-1-56100-708-0, Pub date 1 October 1996, Audio Cassette ; 1997, US, Ballantine Books ISBN: 978-0-449-91255-3, Pub date 8 September 1997, Paperback ; 1997, UK, Black Swan ISBN: 978-0-552-99777-5, Pub date 1 November 1997, Paperback ; 2008, US, Brilliance Audio ISBN: 978-1-4233-5628-8, Pub date 4 April 2008, Audio CD 
Title: Sparrow (American poet)
Content:  Sparrow (born Michael Gorelick, October 2, 1953) is an American poet, activist, and musician. As a member of the New York-based literary group The Unbearables, Sparrow has published several poetry collections with Soft Skull Press, as well as chapbooks in collaboration with the St. Mark's Poetry Project, and he has served as the editor for the literary journal Big Fish. He has been published in The New Yorker (after picketing their offices in 1996 while holding a sign reading, "My Poetry is as bad as yours)", The Quarterly, and The New York Times. He is the founder both of the "One Size Fits All Movement" and the East Village Militia. He was also featured in the PBS series The United States of Poetry, and his music (with the band Foamola) is featured on the poetry compilation Poemfone: New Word Order. He is also a gossip columnist for the Phoenicia Times, a contributing editor to Chronogram, and a substitute teacher. He currently lives with his wife Violet Snow and daughter in the Woodstock region of the Catskill Mountains in New York.
Title: Bud Sparhawk
Content:  Sparhawk was born in Baltimore, Maryland, and lives in Annapolis. He has a BS degree in Mathematics from the University of Maryland and an MBA in Finance from Oklahoma City University. After fifteen years in the Air Force he worked for a variety of commercial companies before retiring from the role of Vice President at Macfadden, a Federal Government contractor. Sparhawk is also a member of SIGMA, a think tank of speculative writers that advises the government on issues of national interest. Sparhawk started writing seriously in 1974 and made his first sale to Analog, followed quickly by his second, just when he entered his second year of graduate school, and just before taking a thirteen-year hiatus from SF. His work is most associated with his short fiction in Analog but it 
Title: Jeff Sparrow
Content:  Jeff Sparrow (born 1969) is an Australian left-wing writer, editor and former socialist activist based in Melbourne, Victoria. He is the co-author of Radical Melbourne: A Secret History and Radical Melbourne 2: The Enemy Within (both with sister, Jill Sparrow). He is also the author of Communism: A Love Story and Killing: Misadventures in Violence.
Title: The Sparrow (novel)
Content:  The Sparrow (1996) is the first novel by author Mary Doria Russell. It won the Arthur C. Clarke Award, James Tiptree, Jr. Award, Kurd-Laßwitz-Preis and the British Science Fiction Association Award. It was followed by a sequel, Children of God, in 1998. The title refers to Gospel of Matthew 10:29–31, which relates that not even a sparrow falls to the earth without God's knowledge thereof.
Title: Bud Sparhawk
Content:  also appeared in various other magazines and anthologies. He is a three-time nominee for the Nebula Award for Best Novella in 1997, 2002, and 2005, and his stories have appeared in several Year's Best SF anthologies. His first professionally published novel, titled Vixen, was released in 2008 from Cosmos Books. At the 2017 Nebula Awards Sparhawk received the Kevin O’Donnell, Jr. Award for service to the Science Fiction and Fantasy Writers of America (SFWA), and in 2018 he retired from the SFWA Board of Directors as Chief Financial Officer. Sparhawk occasionally attends science fiction and fantasy conventions, including Balticon, Confluence, and CapClave in the Mid-Atlantic region of the US. He has also appeared as a guest author in numerous interviews. When not writing, he spends his spare time sailing on Chesapeake Bay.

Question: Who is the author of Spar?
Answer: Kij Johnson.