According to a January 25 article in the Nihon Keizai Shimbun, The Publishing Science Institute, which conducts research and surveys on the publishing industry, had announced that the estimated combined book sales of paper and digital editions in Japan in 2020 was 1,616.8 billion yen (15.59 billion USD), which was up five percent from 2019 mainly thanks to a huge hit of Koyoharu Gotouge’s Demon Slayer: Kimetsu no Yaiba manga.
It accounted for 393.1 billion yen (3.79 billion USD), 24 percent of the total publishing market, exceeding 20% for the first time.
Digital manga performed particularly well among them, increasing 32 percent to 342 billion yen (3.29 billion USD).