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Piers Plowman  (written ca. 1360–1387) or Visio Willelmi de Petro Ploughman (William's Vision of Piers Plowman) is the title of a Middle English allegorical narrative poem by William Langland. It is written in unrhymed alliterative verse divided into sections called "passus" (Latin  for "step"). Piers is considered by many critics to be one of the early great works of English literature along with Chaucer's Canterbury Tales and Sir Gawain and the Green Knight during the Middle Ages.

這部長篇敘事詩以宗教的觀點

描寫Piers Plwman這個農夫的夢境之旅

詩中部分為諷刺，攻擊社會各階層的罪惡

部分為寓言，褒貶世人的大善大惡