Ai Yazawa is a Japanese manga author. Her pen name comes from Japanese singer Eikichi Yazawa, of whom she is a fan.[citation needed] While most of Yazawa's manga is published in Japan by Shueisha, publishers of Ribon and Cookie (Nana was serialized in the latter), series like Paradise Kiss have appeared in non-Shueisha magazines such as Zipper, published by Shodensha.
