The Pillow Book (Makura no Soshi) is a personalised account of life at the Japanese court by Sei Shonagon which she completed c. 1002 CE during the Heian Period. The book is full of humorous observations (okashi) written in the style of a diary, an approach known as zuihitsu-style ('rambling') of which The Pillow Book was the first and greatest example.
This is a companion discussion topic for the original content at https://www.worldhistory.org/The_Pillow_Book/.