Founded in 1984 and consists of six publishing companies. Publishes guidebooks, business magazines, cultural magazines, travel magazines, child upbringing, poetry, health magazines and, surprisingly, RPG magazines.
"Kokusai (国際)" means "international" and "Tsushin (通信)" means "communication".
Its abbreviation is "Koku-Tsu (国通)" and "K2P". K is a capital of "Kokusai". 2 is a pun of "TSUshin". P is a capital of "Publishing".
Publishes Command Magazine Japan and Wargame Japanese History.
- Yasushi Nakaguro has confirmed Kokusai-Tsushin Co., Ltd as the correct name.
- Kokusai-Tsushin Co., Ltd. has an imprint under the name K2 Publishing.