Most Japanese manga is published first in weekly or monthly magazines and only collected into volumes (tankōbon) afterward, once a serial has accumulated enough chapters and demonstrated commercial viability. The magazine system — its publishers, its rotation of magazines, and its editorial culture — is the central institutional structure of the manga industry.
Major publishers
- Shueisha — publishes Weekly Shōnen Jump, Young Jump, Margaret, Ribon. Owns Shōnen Jump's franchise pipeline (Dragon Ball, One Piece, Naruto, My Hero Academia).
- Kodansha — publishes Weekly Shōnen Magazine, Young Magazine, Morning, Afternoon, Nakayoshi, Be Love. Owns Attack on Titan, Vinland Saga.
- Shogakukan — publishes Weekly Shōnen Sunday, Big Comic Spirits, Big Comic Original, Ciao. Owns the Rumiko Takahashi catalogue and much of Urasawa.
- Hakusensha — Young Animal (publishes Berserk), LaLa, Hana to Yume.
- Kadokawa — substantial manga and light-novel publishing, particularly post-2010 isekai.
The volume publication pipeline
Magazine serial chapters are collected into tankōbon volumes — typically 180–200 pages, with eight to ten chapters per volume — published every three to six months after first serialisation. The collected volumes generate substantially more revenue per page than the magazines themselves and are the principal revenue source for most successful manga. Long-running series produce dozens of volumes (One Piece exceeds 100 volumes).
Editorial structure
Each serialised manga has an assigned editor at the publishing magazine. The editor — not the artist's manager or agent — handles ongoing editorial decisions, including which chapters to publish, which storylines to push or cut, and which artists to recommend for new projects. The editor-author relationship is the principal structural unit of the manga industry and is documented at length in autobiographies of working manga artists.