The Invisible Library
#3813.97 of 664 ranked universes · full ranking
Books 8 books Status Complete 2015–2021 Reading commitment High Genevieve Cogman Last reviewed 2026-08-25
Overview
Irene is a spy and field agent for the Library, a mysterious organisation that collects unique works of fiction from an infinite set of alternate versions of Earth, ranging from orderly to overrun with chaos and magic. The eight-novel sequence (2015-2021) mixes detective-story plotting, dragons, Fae and interdimensional politics.
Portal fantasy · For Adult
Core Canon: Reading Order (8 works) counts toward ranking
The Invisible Library Genevieve Cogman
| Work | Year | Internal chron. | Canon | Rating | |
|---|---|---|---|---|---|
 | The Invisible Library | 2015 | 1 | core | 3.74 (66,891 ratings) |
 | The Masked City | 2015 | 2 | core | 3.95 (28,821 ratings) |
 | The Burning Page | 2016 | 3 | core | 4.05 (21,987 ratings) |
 | The Lost Plot | 2017 | 4 | core | 4.17 (17,810 ratings) |
 | The Mortal Word | 2018 | 5 | core | 4.19 (14,458 ratings) |
 | The Secret Chapter | 2019 | 6 | core | 4.17 (11,635 ratings) |
 | The Dark Archive | 2020 | 7 | core | 4.18 (10,079 ratings) |
 | The Untold Story | 2021 | 8 | core | 4.30 (8,561 ratings) |
An eight-novel sequence following Irene, a spy-librarian who collects works of fiction from alternate versions of Earth for an interdimensional Library.
Quick answers
- How many books are in The Invisible Library? The Invisible Library's Core Canon is 8 books.
- What is the reading order for The Invisible Library? Publication order, starting with The Invisible Library. Full list and years in the Core Canon table above.
- Is The Invisible Library finished? Complete (2015–2021).
- How much reading does The Invisible Library take? High reading commitment (estimated from 8 Core Canon books).
- How is The Invisible Library ranked? #381 of 664 ranked universes on this site, based on 180,242 reader ratings across 8 Core Canon books. See the full ranking for how this is calculated.
Why is it ranked #381?
Ranked #381 of 664 ranked universes.
- Average reader rating of 3.97 across 8 core books.
- Backed by 180k reader ratings.
- Uneven reception: its books range from 3.74 to 4.30.
- Less than 0.01 behind #380, The Adventures of Mary Darling (a finer tie-break level decides the order).
- Below the top-10 average of 4.45.
Why explore this universe?
Well rated · 8 books · Complete · 180k ratings · Ranks #381 overall
Good choice if you want a long-running portal fantasy universe that's already finished, so there's no wait for the next book.
Reading order
Publication order (8 Core Canon books)
- The Invisible Library (2015)
- The Masked City (2015)
- The Burning Page (2016)
- The Lost Plot (2017)
- The Mortal Word (2018)
- The Secret Chapter (2019)
- The Dark Archive (2020)
- The Untold Story (2021)
Documented internal/story chronology is recorded for every Core Canon book here, and matches publication order exactly, with no divergence to show separately.
Awards (verified)
- No awards found for this universe.
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Suggestions computed from what The Invisible Library and each of these worlds have in common on record (subgenre, audience, shape, reading commitment and score), not a documented narrative connection.
- Wayward Children Portal fantasy · Ongoing · High commitment · 3.95
- Guardians of the Flame Portal fantasy · Complete · High commitment · 3.92
- The Dragon Knight Portal fantasy / Comic fantasy · Complete · High commitment · 3.88
- Barsoom Portal fantasy / Sword & sorcery · Complete · High commitment · 3.82
Official resources
Research details
Ranking metrics: weighted average 3.97 across 180,242 ratings on 8 Core Canon books. See Why is it ranked here? above for the full breakdown, or the full ranking.
How do we know this?
Admission: Admit The Invisible Library accepted 2026-08-25
Sources: (see source tier definitions)
- Wikipedia: Genevieve Cogman Tier 2
Last reviewed: 2026-08-26
Rule: Core = the complete eight-novel main sequence.