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Marcy Posner

An agent with Folio Literary Management (see other agents at this agency).

About

I have spent a lifetime in books. I started out with a brief stint as a librarian, but found it a bit too staid, so moved on to publishing. My first job was at Pinnacle Books where as assistant to the President I was given a book to edit the third week of my employment. I then moved on to Rodale Press and then Salem House where I helped bring British books to the US, finally moving up the publishing ladder to Pantheon’s Associate Publisher, where I worked with some of the major cultural icons of our time. After fifteen years on the editorial side of the business, I made the jump to agenting – spending twelve years at the William Morris Agency as an agent and as Vice President and Director of Foreign Rights; five years as president of my own agency; five years at Sterling Lord Literistic as an agent and Director of Foreign Rights; and I’m now here – and very happy – at Folio. Editorial skill and a deep knowledge of the publishing industry sets me apart from many of my colleagues. When I work with my authors, I’ll focus editorially on how to make the book as strong as it could be – whether that book be terrific women’s fiction or an extraordinary YA debut (or any of the other categories I represent). During that process, I’m able to bring to bear all the institutional memory I possess, knowing which editors and which publishing houses have a penchant for a certain subject, or a different voice, or a particular kind of author.

Country

United States

AI Policy

Unknown AI policy

Statistics Synopsis

Faster
Marcy Posner's overall average response time is faster than most agents.

Collapse section Fiction Open

Audience:

Open to a broad Audience, including: Adults, Middle grades, Young adults.

Genres:

General Open to all/most Subgenres, including: Historical, Women's Fiction
Fantasy Open to all/most Subgenres
Horror Open to all/most Subgenres
Mystery/Crime Open to all/most Subgenres
Romance Open to all/most Subgenres
Suspense/Thriller Open to all/most Subgenres

Lengths:

Novel

Styles:

Open to all/most Styles, including: Literary, Mainstream.

Topics:

Open to all/most Topics.

Submissions:

Method: QueryTracker.
Simultaneous submissions: Simultaneous submissions are allowed.

Collapse section Nonfiction Open

Audience:

Open to a broad Audience, including: Adults.

Lengths:

Book

Styles:

Open to all/most Styles, including: Literary, Mainstream, Personal.

Topics:

Open to all/most Topics including...
Nature/Environment: General, Environmental issues, Nature.
Psychology.
Sexuality/Gender: Women/Female issues.
Society/Culture: General, Social issues.

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.

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.

Marcy Posner 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:
Accuracy
We have received 3 reports from 3 different members within the past 12 months. The more responses reported, the more accurate the information.
Days Reported
4 min | 24.0 mean avg | 20.0 median | 48 max days (22.3 std dev)

Other Information

Most recent response reported was received on 16 Feb 2026.
Responses have been received for submissions sent as recently as 12 Feb 2026.
Date compiled: 06 Sep 2026 22:39 UTC (less than a minute ago).

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Your Submissions

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Before Submitting

We cannot guarantee that the information on this page is correct. We do our best to keep up, but it isn't always possible. Duotrope listings do not imply endorsement or recommendation of the agent or agency being listed. Before submitting, you should use your own judgment to determine whether the agent/agency meets your standards.

  • Always read the full guidelines provided by the agency/agent.
  • Unless the agency's guidelines state otherwise, always use industry standard manuscript formatting.
  • For agency submissions, it is standard to submit a query letter and sample instead of the full manuscript. Do this unless otherwise instructed.
  • Be professional, patient, and persistent.

Dates

Last Updated: 26 Jul 2026

We check their guidelines for changes every four weeks, and we audit the listing twice a year.

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