Shūi Wakashū
The Shūi Wakashū (拾遺和歌集; "Collection of Gleanings"), often abbreviated as Shūishū, is the third imperial anthology of waka from Heian period Japan. It was compiled by Emperor Kazan in about 1005.[1] Its twenty volumes contain 1,351 poems. The details of its publication and compilation are unclear.
The Shūishū was an expansion of Fujiwara no Kintō's earlier anthology, the Shūishō (拾遺抄; "Selection of Gleanings"), compiled between 996 and 999.[1] Until the early nineteenth century, it was mistakenly believed that the Shūishō was a selection of the best poems from the Shūishū, and so the former was more highly regarded.[2]