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Literary Agents

 Literary Agents

Ms. Johanna Castillo

Writers House

Ms. Johanna Castillo

Writers House

21 West 26th Street

New York, NY 10010



E-Mail: To protect agents from spam, email addresses are hidden except to logged-in members. Join Now

Website: writershouse.com

Blog: www.publishersmarketplace.com/members/JohannaCastillo/

Twitter: jcastillobooks

AAR/AALA Member: No

Accepts Queries Via...

Snail-Mail: No

E-Mail: Yes

Online Form: No

Learn more about this agent, including:

  • Genres of Interest
  • Typical Response Times
  • Best Query Methods


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Query Guidelines

Send your query letter and the first 5 pages (or up to the first chapter) of your manuscript in the body of an e-mail (no attachments, please)

Leave comments about your experiences with this literary agent, or read what other authors have to say.

from Patrick (admin)
Jan 14, 2022 10:40 am


Profile Update: Genres updated.
from iWilltaleit
Nov 22, 2021 5:31 pm


11/22/21 - Email Query

80K Women's Fiction
from banaesma
Nov 04, 2021 6:59 pm


EQ: 5 October, 2021
ER: 4 November, 2021

Got a very nice rejection letter from Erin (I'm guessing her assistant) on Johanna's behalf saying she can only take projects that are a perfect fit for her list so keep trying :)

adult 83k LitFic
from TerryBrennan
Nov 01, 2021 12:44 pm


LatinX focus
from Patrick (admin)
Sep 26, 2021 4:24 pm


Profile Update: Open to queries.
from morningstar21
Sep 17, 2021 12:30 am


She was super nice. She was the first to ask for a partial manuscript but at the end passed.
from Patrick (admin)
Sep 01, 2021 3:28 pm


Profile Update: Closed to queries.
from Patrick (admin)
Jul 13, 2021 7:55 am


Profile Update: Genres updated.
from Catsamoa79
Jun 02, 2021 4:03 pm


EQ: 4/30/21
ER: 6/2/21
Form letter from her assistant Erin
from Patrick (admin)
Apr 28, 2021 6:43 pm


Profile Update: Genres updated.
from Patrick (admin)
Apr 23, 2021 4:08 pm


Profile Update: Open to queries.
from Patrick (admin)
Apr 08, 2021 10:28 am


Profile Update: Closed to queries.
from Isolamelia
Mar 13, 2021 5:57 am


EQ: 2/3/21
ER: 3/12/21
Pleasant form letter from her assistant.
Literary Fiction
from Woodside
Mar 06, 2021 3:50 pm


EQ 1/25/2021
Espionage Thriller 83,000 words
ER 3/6/2021 Pleasant Form Letter written by her assistant Erin
from jdominiclim
Mar 02, 2021 11:48 am


EQ: 01/18/21
PR: 03/01/21 via assistant, Erin Patterson
Notified her that I'd already accepted an offer of representation from another agent (I had forgotten to notify Johanna); her office seems to be slow to respond, so if you get an offer from another agent, definitely let her know and give her a chance to show her interest!!

#ownvoices LGBTQ+BIPOC rom-com 80K words

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