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Carleen Geisler

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Britt Siess Creative Management·US

Agent profile summary

Represents
adult fictioncontemporary fictionupmarket fictionliterary fictioncommercial fictionhistorical fiction
+21 moregrounded speculative fictionthrillersuspensehorrorromancemysteryadult nonfictionspiritualitymind body spiritfoodagriculturescienceSTEMnatural livinganimalspetscommunityculturepop culturehealthwellness
Looking for
Carleen is building a list in adult fiction and nonfiction. In fiction she likes contemporary genres, upmarket or literary voices, commercial work, historical genre blends, grounded speculative stories, thrillers, suspense, horror, mysteries, and romance with a strong subplot. In nonfiction she is interested in niche topics with wide appeal, including spirituality, food, agriculture, science, natural living, animals, culture, pop culture, and health/wellness.
How to submit
Submit through Carleen Geisler's QueryManager form. The form asks for a query letter, synopsis, genre, word count, comparable books, AI-use disclosure, publication history, and the first 10 pages, or a book outline for nonfiction.
View source·Agent page
Last checked 1 Sept 2026·Last verified: 1 Sept 2026
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Carleen Geisler is a literary agent at Britt Siess Creative Management based in US. Their list focuses on genres including adult fiction, contemporary fiction, and upmarket fiction. Currently open to submissions. Submissions via QueryManager. For current guidelines, check the agent's own submission page linked below.

Age Categories

Adult

Notes

Only taking novel-length submissions at this time.

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literary fictioncommercial fictioncrime & thrillermysteryhorrorscience fictionromancecontemporaryhistorical fictionupmarket fictionhistoryfood & cookeryhealth & wellbeing

This profile was last verified on 1 Sept 2026. PairPi checks this literary agent's submission guidelines against the agent's own website. If you spot something wrong, please email hello@pairpi.com.