Kibyōshi(黄表紙) is a genre of Japanese picture book kusazōshi (草双紙) produced during the middle of the Edo period, from 1775 to the early 1800s. Physically identifiable by their yellow-backed covers, kibyōshi were typically printed in 10 page volumes, many spanning two to three volumes in length, with the average number of total pages being 30. Considered to be the first purely adult comicbook in Japanese literature, a large picture spans each page, with descriptive prose and dialogue filling the blank spaces in the image.