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Literary Agents

Ms. Johanna Castillo

Writers House

21 West 26th Street

New York, NY 10010



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Website: writershouse.com

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

Twitter: jcastillobooks

AAR 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)
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
from Patrick (admin)
Feb 18, 2021 5:50 pm


Profile Update: Genres updated.
from Catsamoa79
Dec 16, 2020 1:03 pm


EQ: 11/5/20
ER: 12/16/20
Form letter, written by her assistant, Erin
from pljarizona
Oct 29, 2020 5:52 pm


EQ 9/22/20 Historical Fiction/Family Saga 92k (she reopened to submissions on 9/21/20)
ER 10/26/20 email written by someone other than Johanna. Not interested. Form.
from Patrick (admin)
Oct 13, 2020 6:16 am


Profile Update: Open to queries.
from billybuttercup
Sep 01, 2020 1:06 pm


EQ: Feb 4/20
PR: Apr 13/20 via assistant, Erin Patterson (first 100 pages - sent same day)
FR: June 27/20 (sent same day)
ER: Sept 1/20 with meaningful feedback

Historical Fiction - 90K
from ReadWrite2020
Aug 11, 2020 9:41 am


EQ: 7-25-20

Adult RomCom 76K
from Zooks3
Aug 10, 2020 7:56 pm


5/27/20: EQ re: THE KNOTTED GUN - thriller/suspense
8/10/20: Form rejection
from Patrick (admin)
Aug 01, 2020 4:39 am


Profile Update: Closed to queries.
from swatithegeek
Jul 14, 2020 1:10 am


EQ: 04/22/20
ER: 07/09/20, form

Adult rom-com, 73k

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