Manuscript Submissions

General Interest Fiction and Nonfiction Books

Unfortunately, we are unable to accept unsolicited manuscript submissions. If you want to publish a manuscript, a good way to start is by looking for a literary agent in the Literary Marketplace. This is a reference book that can be found in most public libraries. The book lists literary agents around the country, their addresses and phone numbers, and the types of books that they specialize in handling. You might also want to pick up a copy of the Houghton Mifflin Harcourt Trade Division book How to Be Your Own Literary Agent by Richard Curtis.


Houghton Mifflin Harcourt regrets that we can no longer consider unsolicited poetry. Since our poetry publishing program is quite small, we have decided to reserve it for the authors to whom Houghton Mifflin Harcourt has already made a commitment. Please seek out resources like Poet's Market if you want to pursue publication.

Children’s Books

Clarion Books, Houghton Mifflin Harcourt Books for Young Readers, and Versify are the hardcover imprints of the Houghton Mifflin Harcourt Books for Young Readers Division.

Please note: Presently, only Versify is accepting unsolicited submissions. Clarion Books and HMH Books for Young Readers will not be reviewing unsolicited submissions at this time.

For Versify, please submit your query via e-mail to Your query should include an attachment of your completed manuscript, double-spaced and formatted in Times New Roman, at 12-point font.

While we accept unsolicited and unagented submissions, we do not respond unless we are interested in publishing the work or would like to request a revision. Our time frame for a response is up to twelve weeks. If you do not hear from us within this time frame, please assume that we have not chosen your manuscript for further review. We regret that we cannot respond personally to every submission, but each manuscript does receive careful consideration.

For picture books and novels, please send the entire manuscript. For nonfiction, submit a synopsis and sample chapters. For graphic novels, please submit a synopsis and 3 or more sample pages.

When submitting work to any publishing house, it is useful to check your local bookstore or library to get a sense of the company’s publishing style. This research may also help you determine which HMH imprint is best for your work.

Illustration Submission Guidelines

The design department receives samples from potential illustrators of picture books and fiction book jackets for Clarion Books and Houghton Mifflin Harcourt Books for Young Readers. (Illustrations that are part of a picture book dummy with text should be submitted to the editorial department per the instructions above.)

Send color copies or tear sheets; do not send original artwork or slides. Please show a limited selection of your strongest work. Illustrations that feature children or animals are helpful, but feel free to submit other subject matter. Samples will not be returned. We will contact you only if we have a potential illustration assignment.

Our mailing addresses are as follows:

Clarion Books OR Houghton Mifflin Harcourt Books for Young Readers Design Department / Art Samples 3 Park Avenue South, 19th Floor New York, NY 10016

Houghton Mifflin Harcourt Books for Young Readers Design Department / Art Samples 125 High Street Boston, MA 02110

Dictionary Department Houghton Mifflin Harcourt 125 High Street Boston, MA 02110