Tsurezuregusa (徒然草, Essays in Idleness, also known as The Harvest of Leisure) is a collection of essays written by the Japanese monk Kenkō (兼好) between 1330 and 1332. The work is widely considered a gem of medieval Japanese literature and one of the three representative works of the zuihitsu genre, along with The Pillow Book and the Hōjōki. Source: Wikipedia (en)