Useful Info

Shuukan: Weekly.
Gekkan: Monthly.
Bessatsu: Extra Issue or Additional Volume.
Zoukan: Special Edition or Special Issue.

Manga magazine: Serialize several/many manga series. manga magazines have a magazine code and don't have an ISBN code.

Manga anthology: Serialize several/many manga series, but unlike manga magazines, manga anthologies have an ISBN code (they are not considered to be magazines), are published under a manga imprint/label like any other manga tankoubon (manga volume), and usually are not published on a regular basis (though not always).

Mook: A combination of the words Magazine and Book. A mook is usually a thin book with its layout and design similar to a magazine. Unlike magazines, a mook has an ISBN code.

Target audience:

Male oriented manga magazines:
- Shounen (boy's) manga magazines.
- Seinen (young men's) manga magazines.
- Seijin (adult men's) manga magazines.
- Bishoujo manga magazines.
- Bara (ML, Men's Love) manga magazines/anthologies.

Female oriented manga magazines:
- Shoujo (girl's) manga magazines.
- Josei (young women's) manga magazines.
- Redikomi (adult women's) manga magagzines.
- Yaoi/BL (Boys Love) manga magazines.

Groups:

Otowa group:
- Kodansha (publishing the Shonen Magazine line)
- Kobunsha

Hitotsubashi group:
- Shueisha (publishing Shonen Jump line of manga magazines)
- Shogakukan (publishing Shonen Sunday manga magazine)
- Hakusensha (publishing Young Animal manga magazine).
- King Records (now independent of Kodansha's record division, sometimes included in the Otowa group)

The names Otowa and Hitotsubashi probably refer to the fact that the main offices of the various companies are located in the Otowa and Hitotsubashi areas in Tokyo. The two groups have been rivals for a long time.

Kadokawa Holdings group:
- Kadokawa Shoten (publishes Newtype magazine)
- Media Works (publishes Dengeki line of magazines including Animaga)
- Enterbrain (absorbed by the Kadokawa Holdings group, prints quite a few video game magazines ie: Famitsu)

Tatsumi Group:
Website
- Tatsumi Shuppan
- Sogotosho
- Souryuusha
- Fujimi Shuppan
- Scholar Magazine
- Nitto Shoin Honsha