In addition, the word canon refers to the writings of an author that scholars generally accepted as genuine products of said author, such as the "Chaucer canon" or the "Shakespeare canon." Chaucer's canon includes The Canterbury Tales, for instance, but it does not include the apocryphal work, "The Plowman's Tale," which has been mistakenly attributed to him in the past. Likewise, the Shakespearean canon has only two apocryphal plays (Pericles and the Two Noble Kinsmen) that have gained wide acceptance as authentic Shakespearean works beyond the thirty-six plays contained in the First Folio. NB: Do not confuse the spelling of cannon (the big gun) with canon (the official collection of literary works).