Kristin Ostby is a literary agent at the Greenhouse Literary Agency. She represents authors of middle grade, young adult, and adult fiction, as well as picture book author/illustrators. She also volunteers as Editorial Advisor for the Society of Illustrators’ Original Art annual exhibition of children’s book illustration.

After graduating from the University of Michigan, where she majored in English, worked at the undergraduate library, and was a staff reporter for The Michigan Daily, Kristin began her career in publishing at Penguin Random House and eventually became a senior editor at Simon & Schuster Books for Young Readers. She has edited children’s book legend Tomie dePaola; New York Times bestselling authors like Stuart Gibbs (Spy School) and US soccer star Alex Morgan (The Kicks); and award-winning creators including Daniel Miyares (Float), Jessica Lawson (Nooks & Crannies), and Heather Vogel Frederick (The Mother-Daughter Book Club). She also edited bestselling I Dissent: Ruth Bader Ginsburg Makes Her Mark by Debbie Levy and Elizabeth Baddeley.

As a literary agent, she loves guiding authors and illustrators toward their best work and advocating for them in service of building successful, sustainable artistic careers.

Kristin lives in Brooklyn, New York.