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Who wrote The Pillow Book?

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The Pillow Book (Makura no sōshi) was written by the 11th-century Japanese court lady Sei Shōnagon.12

A masterpiece of classical Japanese literature, the work is a collection of reminiscences, observations, and lists—such as "Annoying Things"—that provide significant insight into court life during the Heian period. The text belongs to the zuihitsu genre, which translates to "random jottings," and is noted for its original prose style and the author's sharp, witty observations.12