L. Frank Baum

• Ozma of Oz (1907)
• Patchwork Girl of Oz (1913)
• Queen Zixi of Ix (1904)
• The Emerald City of Oz (1910)
• The Marvelous Land of Oz (1904)
  • also known as The Land of Oz : a sequel to The Wizard of Oz
• The Scarecrow of Oz (1915)
• The Wonderful Wizard of Oz (1900)