|This article does not cite any sources. (December 2012) (Learn how and when to remove this template message)|
An Exchange diary (交換日記 Kōkan nikki?) is a notebook shared between friends, who take it in turns to write in their thoughts or other comments. Exchange diaries were especially popular in Japan in the 1990s in elementary and junior high schools, particularly among girls.
|This Japanese literature-related article is a stub. You can help Wikipedia by expanding it.|