The Ultimate Fantasy Series Ranking

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Genevieve Cogman

1 universe Last reviewed 2026-08-26

Genevieve Cogman is a British fantasy author who lives in the north of England and holds an MSc in Statistics with Medical Applications. Alongside her writing career, she has worked as a clinical classifications specialist for the National Health Service and as a role-playing game designer, contributing freelance material to Steve Jackson Games, White Wolf Publishing, and Evil Hat Productions, including sourcebooks for In Nomine, GURPS, Orpheus, Exalted, and The Dresden Files. She is best known for The Invisible Library series, eight novels published between 2015 and 2021 that follow a secretive order of undercover librarians who travel between alternate realities to acquire and preserve unique works of fiction, blending steampunk aesthetics, supernatural politics, and interdimensional adventure. She followed this with the ongoing Scarlet series, published between 2023 and 2025. Cogman's fiction is noted for its inventive blending of bibliophilic fantasy, multiverse worldbuilding, and fast-paced adventure plotting, drawing on her background in tabletop role-playing game design to construct richly detailed alternate worlds. Her career spans both traditional publishing and the broader speculative fiction gaming industry, reflecting a dual expertise in structured game-world design and long-form serialized fantasy fiction that has earned her a dedicated international readership.

Universe(s)

The Invisible Library

  • Core Canon books: 8
  • Current rank: #471 in the official ranking
  • Weighted average: 3.97
  • Award recognitions: None recorded

Books

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