I had no idea there were so many Oz books! I do remember The Wizard of Oz and Ozma of Oz - I loved Ozma! There are 15 Oz books in total. This Rinkitink softcover is a Coles of Canada book from 1980. L. Frank Baum published his first Oz book in 1900. 120 years ago! The Oz books in order: 1) The Wizard of Oz (originally, The Wonderful Wizard of Oz)
2) The Land of Oz
3) Ozma of Oz
4) Dorothy and the Wizard in Oz
5) The Road to Oz,
6) The Emerald City of Oz
7) The Road to Oz
8) The Patchwork Girl of Oz
9) Tik-Tok of Oz
10) The Scarecrow of Oz
11) The Lost Princess of Oz
12) The Scarecrow of Oz
13) Rinkitink of Oz
14) The Magic of Oz
15) Glinda of Oz