From Our Catalog:
The Wizard of Oz by L. Frank Baum, 1900
The first of the Oz books. The Wizard of Oz was originally titled the Wonderful Wizard of OZ in 1900, when it was first published.
After a cyclone transports her to the land of Oz, Dorothy must seek out the great Wizard in order to return to Kansas, accompanied on her journey by the Scarecrow, the Tin Woodsman, and the Cowardly Lion.
Additional titles to the series include; The Marvelous Land of Oz (1904), Queer Visitors from the Marvelous Land of Oz (1905, comic strip depicting 27 stories), The Woggle-Bug Book (1905), Ozma of Oz (1907), Dorothy and the Wizard in Oz (1908), The Road to Oz (1909), The Emerald City of Oz (1910), The Patchwork Girl of Oz (1913), Little Wizard Stories of Oz (1913, collection of 6 short stories), Tik-Tok of Oz (1914), The Scarecrow of Oz (1915), Rinkitink in Oz (1916), The Lost Princess of Oz (1917), The Tin Woodman of Oz (1918), The Magic of Oz (1919, posthumously published), Glinda of Oz (1920, posthumously published), and The Royal Book of Oz (1921, posthumous attribution—entirely the work of Ruth Plumly Thompson).