The Kokin Wakashu is a classic anthology of Japanese poetry, compiled in the early 10th century during the Heian period. It consists of 1,111 poems, primarily in the form of waka, a traditional Japanese poetic form. The collection was commissioned by Emperor Daigo and is notable for its organization, which categorizes poems by themes such as love, nature, and seasons. This anthology is significant for its influence on later Japanese literature and poetry. It includes works from various poets, including famous figures like Ki no Tsurayuki, who also contributed to the preface. The Kokin Wakashu is considered a foundational text in the study of Japanese poetry and culture.