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Johanna Castillo

Literary Agent

Writers House

Seeking General Fiction, Romance, Suspense/Thriller, Mind/Body/Spirit, Lifestyle, Cookbooks, African-American.

Fiction: Historical, Women's Fiction and Fiction in translation.

Non-fiction: Narrative, Memoir, Pop-Culture. Latinx Fiction and Non-Fiction

Also representing: Middle Grade & YA

Johanna Castillo joined Writers House Literary Agency as a Senior Literary Agent in 2018. A seasoned professional in the publishing industry, Johanna was formerly Vice President & Executive Editor at Atria Books/Simon and Schuster and Editorial Director of Atria Español for nearly fifteen years. In that role, she acquired and edited forty-one New York Times bestsellers by multiple national and international bestselling authors including Isabel Allende, Colleen Hoover, Sharyn McCrumb, Rachael Ray, Sara Shepard, Rosanna Pansino,Javier Sierra, Laura Esquivel, Theresa Caputo, Armando Lucas Correa, Tosha Silver, Roxanne Veletzos and María Dueñas.


As a literary agent, Johanna is actively building a list of talented authors with whom she can work closely with editorially and form solid, long-term partnerships..

*Upon booking you will receive an email with manuscript submission guidelines. 

  • Sold Out
    Sun, May 03
    The City College of New York
    May 03, 2020, 3:15 PM – 3:30 PM
    The City College of New York, 160 Convent Ave, New York, NY 10031, USA
    Book an appointment to have literary agent Johanna Castillo review your manuscript.