The chapters of Tomie were first released in the manga magazine Month Halloween, later being published in an omnibus and as volumes.
Tomie was Ito's first published work he originally submitted to Monthly Halloween, a shojo magazine in 1987, which led to him winning the Kazuo Umezu award. Asahi Sonorama released an omnibus volume in February 2000 titled, Tomie Zen ( ()). ComicsOne released both volumes on April 1, 2001, with flipped artwork (read left-to-right). 
