Isabelle Rader is a literary agent at Codex Literary Agency representing New Adult, fantasy, and upmarket/commercial fiction.
Agents open and close to queries on short notice — always confirm on the agency's official page before submitting.
What Isabelle is looking for
Isabelle is actively looking for New Adult books across all genres, plus adult, YA, and middle-grade fantasy and upmarket/commercial adult fiction — all with never-before-seen worldbuilding, unique characters, strong plotting, and compulsive hooks. She's very likely to connect with manuscripts that bridge the YA/adult divide.
Actively seeking
- New Adult across all genres
- Dark academia, epic, historical, and contemporary fantasy
- Strong female leads and diverse voices
- Romantic subplots: enemies to lovers, slow burns, forced proximity (bonus: a morally grey best friend)
Never miss an open window
Agent windows open and close fast — sometimes within days. Get a weekly email when agents like Isabelle open to queries, with their wishlists, sales, and direct query links.
Free · 11,000+ querying authors · Unsubscribe anytime
Frequently asked questions
Is Isabelle Rader open to queries right now?
Agents open and close to queries on short notice, so we don't display a live status. Check the agency's official submission page before querying — or subscribe to Agent Alert (free) to be notified the week agents like Isabelle open.
What genres does Isabelle Rader represent?
Isabelle Rader represents New Adult, Fantasy, Young Adult, Middle Grade, Upmarket Fiction, Commercial Fiction.
How do I query Isabelle Rader?
Submit via the Codex Literary website. Submit via the official query link on this page.
Querying Isabelle? Don't send a letter that gets skimmed and rejected. Get a professional critique from a former Big Five editor — agent-ready in 3 days.
Get Your Query Reviewed — $249
By QueryAcademy's founder and QueryTracker's creator — with insights from 4 million real queries. Out August 26, 2026.
Preorder the BookRelated agents
Profile compiled from public sources; last reviewed by the QueryAcademy research team on June 10, 2026. Agents open and close to queries frequently — always confirm against the agency's official guidelines before submitting. Spot an error or have an update? Suggest a correction or email hello@queryacademy.com.