15 Books in 1: L. Frank Baum's Original Oz Series: With The Wonderful Wizard of Oz , The Marvelous Land of Oz , Ozma of Oz , Dorothy and the Wizard in Oz , The Road to Oz , The Emerald City of Oz , The Patchwork Girl Of Oz , Little Wizard Stories of Oz , Tik-Tok of Oz , The Scarecrow of Oz , Rinkitink in Oz , The Lost Princess of Oz , The Tin Woodman of Oz , The Magic of Oz and Glinda of Oz by L. F. Baum (Paperback, 2005)