Jippensha Ikku (十返舎 一九, 1765 – September 12, 1831) was the pen name of Shigeta Sadakazu (重田 貞一), a Japanese writer active during the late Edo period of Japan. He was among the most prolific yellow-backed novel (黄表紙, kibyōshi) writers of the late Edo period — between 1795 and 1801 he wrote a minimum of twenty novels a year. He mainly wrote sharebon (洒落本), kokkeibon (滑稽本) and over 360 illustrated stories, (gōkan, 合巻 ). He also helped create kokkeibon as a genre. Ikku was one of the most prolific writers of his time, and shaped the literary history that came after him. Source: Wikipedia (en)