Mark O'Brien An agent with Azantian Literary Agency (see other agents at this agency). About Mark O'Brien joined Azantian Literary Agency in 2024 with nine years of experience in the book publishing industry. Prior to ALA, Mark interned at Entangled Publishing, Stonesong, Triada US Literary Agency, and Writers House, and worked as Sales Coordinator at NetGalley for three years. Mark has also worked as a freelance editor and sensitivity reader, as well as a volunteer with organizations like #DVpit, Tessera Editorial, and Quillers SWANA. Authors Mark has worked with in these roles include Becky Albertalli, Kelly Loy Gilbert, Victoria Aveyard, Ryan La Sala, Lydia Kang, J. Elle, Gabe Cole Novoa, Varian Johnson, Jessica Kim, Sayantani DasGupta, and many more. Country United States AI Policy Human-created work only; no AI use allowed Collapse section Fiction Open In young adult, Mark's first love is contemporary realistic fiction, as well as realistic with a twist, a la Please Ignore Vera Dietz by A.S. King or The Art of Starving by Sam J. Miller. Some of his favorites include Picture Us in the Light by Kelly Loy Gilbert, The Miseducation of Cameron Post by Emily M. Danforth, I’ll Give You the Sun by Jandy Nelson, Every Day by David Levithan, The Disreputable History of Frankie Landau-Banks by E. Lockhart, and the works of Becky Albertalli, Angie Thomas, and Ryan La Sala.Mark is also building his list in YA genre fiction, including science fiction and fantasy. He loved Marie Lu's Warcross, A Song of Wraiths and Ruin by Roseanne A. Brown, The November Girl by Lydia Kang, The Raven Cycle by Maggie Stiefvater, Six of Crows by Leigh Bardugo, and Nimona by N.D. Stevenson.ADULT FICTIONIn adult fiction, Mark is looking for all sorts of queer romance. Some of his favorite authors in romance are Cat Sebastian, Alexis Hall, Helen Hoang, Timothy Janovsky, Kennedy Ryan, and Meryl Wilsner.Audience:Open to a broad Audience, including: Adults, Young adults.Genres: General Open to all/most Subgenres Fantasy Open to all/most Subgenres Romance Open to all/most Subgenres Science Fiction Open to all/most SubgenresLengths: NovelStyles:Open to all/most Styles, including: Literary, Mainstream.Topics: Open to all/most Topics including... Sexuality/Gender: LGBTQ issues, See guidelines.Submissions:Method: QueryTracker. Simultaneous submissions: Unknown. Collapse section Nonfiction Open In nonfiction, Mark’s tastes lean accessible, queer, and neurodivergent. Think Here for It by R. Eric Thomas, Hola Papi by John Paul Brammer, What My Bones Know by Stephanie Foo, The New Masculinity by Alex Manley, and Hi Honey, I’m Homo! by Matt Baume.Audience:Open to a broad Audience, including: Adults.Lengths: BookStyles:Open to all/most Styles, including: Literary.Topics: Open to all/most Topics including... Sexuality/Gender: LGBTQ issues, See guidelines.Submissions:Method: QueryTracker. Simultaneous submissions: Simultaneous submissions are allowed. Always check guidelines for details and restrictions. If you aren't familiar with these terms, see our glossary. Go to agent's webpage Report: Submission/Query Correction/Update New Cover ArtSocial:Bluesky @bookmarkobrien.bsky.socialInstagram @azantianliteraryagency For the Agent: Request Interview Duosuma Submission Manager Link to Duotrope Agent Impersonation Scams are becoming commonplace.A legitimate agent will not contact you and request money to represent you. Never pay an agent an up-front fee. That is not how literary agent representation works. Agents earn a commission only after they've landed a publishing deal for you. Also, agents scarcely ever contact writers. If an agent that you haven't queried contacts you about representation, be suspicious. Look up the agent and check if the email address is correct for that agent/agency. Mark O'Brien Submission Statistics The statistics in this section are compiled from submission reports sent to us through our submission tracker. They are not provided by the agency or by Duotrope's admins. Information in this section is updated a few times per day. Learn more about the statistics. Filter: Category: All Categories Fiction Nonfiction Group by submission Include other agents at the same agency Accuracy We have received 1 report within the past 12 months. The more responses reported, the more accurate the information. Other Information The agent will try to make a decision within 84 days. Most recent response reported was received on 04 Mar 2026. Responses have been received for submissions sent as recently as 19 Feb 2026. Date compiled: 07 Sep 2026 19:19 UTC (less than a minute ago). Work submitted to this agent was also submitted to...This section is available to subscribers only. Sign up and start your free trial today!Members accepted by this agent also had work accepted by...This section is available to subscribers only. Become a member and start your free trial today! Your Submissions This section is available to subscribers only. Join today! Other Agents at this AgencyThais AffonsoKeir AlekseiiJennifer AzantianCarey Blankenship-Kramer DNQGiannaMarie DobsonT.S. FergusonMasha GunicMara HollanderShannon LechonLarissa Melo PienkowskiRenae Moore DNQRoma PanganibanShelly RomeroAmanda Rutter DNQAndrea Walker CLOSEDAlexandra Weiss Before SubmittingWe cannot guarantee that the information on this page is correct. We do our best to keep up, but it isn't always possible. 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