This chapter provides an overview of manga usage in Japan. First, it traces the contours of the production side and the historic structuring function of print magazines, as well as their connections to anime. Second, the chapter delves into readership, consumption, and use. Issues of agency make room for a discussion of publications produced and distributed outside official commercial channels but in dialogue with them, and the Comic Market as their biggest sales-spot event. Third, the chapter exposes how different standards of regulation allowed eroticism to spread throughout manga and related media and material forms in Japan. Assumptions about consumption are unsettled through the example of Weekly Shōnen Jump, even as assumptions about production are disrupted through the suggestion that women are the majority of erotic manga artists today. Final thoughts are given on friction in the global circulation and reception of manga, which presents both challenges and opportunities for manga studies specifically and comics studies generally.