Mariah Nichols
D4EO Literary Agency
Likely Closed
Updated: 1/30/2026
Agent Information
Agent Bio
Mariah has a great passion for storytelling and for the publishing industry.
With a BS degree in Business she wanted to apply her degree towards the world of books.
After interning at Howland Literary her senior year, she soon transitioned to the role as a reader and in-house editor for the D4EO Literary Agency, working with Bob Diforio in all aspects of the business, with the intention of being named a D4EO literary agent.
She enjoys working with new authors, offering editorial suggestions and copy editing of their manuscripts, helping to ensure that the work submitted to publishers is the best it can be.
She is actively seeking compelling stories and growing her client list.
Research Links
Query Information
Query Format
Query Format
QueryManager
Genres Information
Genres Represented
Fiction
- Romantic Comedy
- Romance
- Science Fiction
- Thrillers
- Upmarket Fiction
- Women's Fiction
Nonfiction
- Cookbooks
- How-To
- Lifestyle
- Memoirs
- Self-Help
Genres Not Represented
D4EO Literary Agency
D4EO is a full-service, multi-agent literary agency representing authors of a very broad range of commercial fiction and non-fiction for children, young adults, and adults.
Other Agents At D4EO Literary Agency (8 Total)
Agent requirements, submission statuses, and other information can change without notice. Due to the changing nature of this information and because guidelines are often open to interpretation, the user should review 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!