John Thornton
The Spieler Agency
Likely Open
Updated: 9/18/2025
Agent Info
Query Info
Genres
Agency Info
Agent Bio
John Thornton has been with the Spieler Agency since 1994, following a thirty-year career as an editor, publishing executive, and editorial director of the Book-of-the-Month Club.
Though he does not handle fiction projects, his nonfiction tastes are eclectic, focusing on excellent writing and high-quality subject matter.
He has worked on topics ranging from memoir and biography to natural history, social issues, and cultural history.
Research Links
Clients
- Richard Lischer
- Phillip Schewe
- Richard Conniff
- Ira Rosofsky
- Carol Levine
Book Sales
- Stations Of The Heart
- Maverick Genius
- The Species Seekers
- Nasty
- Brutish
- And Long
- Long-term Care For Dummies
Agent requirements and submission statuses can change without notice. Because guidelines are often open to interpretation, we recommend a final review of the agent's official website before submitting. This listing is provided for informational purposes and does not constitute an endorsement. We're rooting for you—good luck!