The Wonderful Wizard of Oz is illustrated by W. W. Denslow.All the other books are illustrated by John R Neill.These are the original illustrations. This collection includes: The Wonderful Wizard of Oz, 1900; The Marvelous Land of Oz, 1904; Ozma of Oz, 1907; Dorothy and the Wizard of Oz, 1908; The Road to Oz, 1909; the Emerald City of Oz, 1913; the Patchwork Girl of Oz, 1913;Tik-Tok of Oz, 1914; The Scarecrow of Oz, 1915; Rinitink in Oz, 1916; The Lost Princess of Oz, 1917; The Tin Woodman of Oz, 1919; The Magic of Oz, 1919; Glinda of Oz, 1920; and The Royal Book of Oz, 1921