Genevieve Cogman is a freelance author, who has written for several role-playing game companies. Her work includes GURPS Vorkosigan and contributions to the In Nomine role-playing game line for Steve Jackson Games: contributions to Exalted 2nd Edition and other contributions to the Exalted and Orpheus lines for White Wolf Publishing: Hearts, Swords and Flowers: The Art of Shoujo for Magnum Opus: and contributions to the Dresden Files RPG for Evil Hat Productions. She currently works for the NHS in England in the HSCIC as a clinical classifications specialist.

She has had eight books of her series about the multidimensional Library accepted by Pan Macmillan, all of which are now in print. She is currently working on a new trilogy involving the Scarlet Pimpernel and a world that includes vampires; the first book, Scarlet, is scheduled for release in 2023.

Her novels are represented by Lucienne Diver of the Knight Agency.