The Kokin Wakashū is a classic anthology of Japanese poetry, compiled in the early 10th century during the Heian period. It consists of over 1,000 poems, primarily written in the traditional form of waka, which is a type of Japanese verse. The collection was commissioned by the emperor and serves as a significant cultural artifact, reflecting the aesthetics and themes of its time. The anthology is divided into 20 books, each focusing on different themes such as love, nature, and seasons. It is notable for its influence on later Japanese literature and poetry, inspiring subsequent works and poets, including those associated with the Tanka form. The Kokin Wakashū remains a cornerstone of Japanese literary heritage.