The longest book series in the catalog
The 50 largest series in the Shelfmark catalog, ranked by number of catalogued books. Every row links to the full reading order, so each count is verifiable. Data: Wikidata (CC0) + Open Library, fiction series with a known author and genre.
| # | Series | Author | Genre | Books | Years |
|---|---|---|---|---|---|
| 1 | Kuroko's Basketball | Tadatoshi Fujimaki | school life (anime & manga) | 275 | 2009–2014 |
| 2 | The Fragrant Flower Blooms with Dignity | Saka Mikami | school life | 123 | 2021–2026 |
| 3 | One Piece | Eiichiro Oda | action (anime & manga) | 114 | 1997–2025 |
| 4 | Ranma ½ | Rumiko Takahashi | romantic comedy (anime & manga) | 82 | 1987–2017 |
| 5 | Star Trek | James Blish | science fiction | 81 | 1967–1977 |
| 6 | Nancy Drew Mystery Stories | Carolyn Keene | children's and young adult literature | 78 | 1930–2003 |
| 7 | In Death | Nora Roberts | crime fiction | 72 | 1995–2025 |
| 8 | Dr. Priestley detective novels | Cecil Street | detective fiction | 71 | 1927–1961 |
| 9 | Canon of Sherlock Holmes | Arthur Conan Doyle | mystery fiction | 62 | 1887–1990 |
| 10 | Goosebumps | R. L. Stine | horror fiction | 62 | 1992–1997 |
| 11 | Desmond Merrion detective stories | Cecil Street | detective fiction | 61 | 1930–1960 |
| 12 | Discworld | Terry Pratchett | fantasy | 55 | 1986–2015 |
| 13 | Animorphs | Katherine Applegate | science fiction | 54 | 1996–2001 |
| 14 | The Saint | Leslie Charteris | mystery fiction | 54 | 1928–1997 |
| 15 | Oz book series | L. Frank Baum | children's literature | 53 | 1900–2006 |
| 16 | Fighting Fantasy | Steve Jackson | gamebooks | 51 | 1982–1995 |
| 17 | James Bond | Ian Fleming | spy fiction | 51 | 1953–2018 |
| 18 | Sune | Anders Jacobsson | children's literature | 49 | 1984–2023 |
| 19 | Xanth | Piers Anthony | fantasy | 47 | 1977–2022 |
| 20 | Yona of the Dawn | Mizuho Kusanagi | romance anime and manga | 47 | 2010–2026 |
| 21 | Fullmetal Alchemist | Hiromu Arakawa | adventure anime and manga | 45 | 2002–2012 |
| 22 | Haikyu!! | Haruichi Furudate | sports (spokon) | 45 | 2012–2020 |
| 23 | 87th Precinct | Evan Hunter | crime fiction | 43 | 1956–2005 |
| 24 | Berserk | Kōji Mori | action (anime & manga) | 43 | 1990–2025 |
| 25 | Darkover series | Mercedes Lackey | fantasy | 43 | 1961–2016 |
| 26 | Platonic dialogue | Plato | philosophical dialogue | 43 | 41 BCE–1963 |
| 27 | Pepper&Carrot | David Revoy | comedy | 41 | 2014–2024 |
| 28 | Star Trek: Voyager | Michael Jan Friedman | science fiction | 41 | 1995–2000 |
| 29 | Gor | John Norman | sword & planet | 38 | 1966–2024 |
| 30 | Hunter × Hunter | Yoshihiro Togashi | action (anime & manga) | 38 | 1998–2024 |
| 31 | The Three Investigators | Michael Collins | crime fiction | 37 | 1964–1979 |
| 32 | The Year's Best Science Fiction | Gardner Dozois | science fiction | 37 | 1984–2018 |
| 33 | Bert Diaries | Anders Jacobsson | children's literature | 36 | 1987–2020 |
| 34 | Classici dell'arte | various authors | art books | 36 | 1966–1978 |
| 35 | The Dresden Files | Jim Butcher | detective fiction | 36 | 2000–2020 |
| 36 | Warriors | Victoria Holmes | fantasy | 35 | 2003–2013 |
| 37 | Canon of Hercule Poirot | Agatha Christie | crime fiction | 33 | 1920–1975 |
| 38 | Alex Cross | James Patterson | mystery fiction | 32 | 1993–2023 |
| 39 | The Twelve Kingdoms | Fuyumi Ono | high fantasy | 32 | 1991–2019 |
| 40 | Commissario Brunetti novels | Donna Leon | crime fiction | 31 | 1992–2022 |
| 41 | Lone Wolf | Joe Dever | gamebooks | 31 | 1980–2020 |
| 42 | New Writings in SF | Kenneth Bulmer | science fiction | 30 | 1964–1977 |
| 43 | Redwall | Brian Jacques | children's literature | 30 | 1986–2011 |
| 44 | Jack Reacher | Lee Child | thriller | 29 | 1997–2024 |
| 45 | Kaguya-sama: Love Is War | Aka Akasaka | slice of life anime and manga | 29 | 2016–2022 |
| 46 | Anita Blake: Vampire Hunter | Laurell K. Hamilton | fantasy | 28 | 1988–2021 |
| 47 | Harry Bosch | Michael Connelly | crime fiction | 28 | 1992–2024 |
| 48 | Ryanverse | Tom Clancy | thriller | 28 | 1984–2018 |
| 49 | The Railway Series | Wilbert Awdry | children's literature | 28 | 1945–1972 |
| 50 | Alfie Atkins series | Gunilla Bergström | children's literature | 27 | 1972–2012 |
Counts reflect books catalogued on Shelfmark; series still in progress keep growing. Reuse welcome with a link back — data is derived from Wikidata (CC0) and Open Library.