The Hidden Valley of Oz (1951) by Rachel Cosgrove Payes
Who's Who in Oz: The Happiest Who's Who Ever Written (1954) by Jack Snow
Dorothy of Oz (1989) by Roger S Baum
0. The Rewolf of Oz (1990) by Roger S Baum
1. The Wonderful Wizard of Oz (1900) by L Frank Baum
2. The Marvelous Land of Oz (1904) by L Frank Baum
     aka The Land of Oz
3. Ozma of Oz (1907) by L Frank Baum
4. Dorothy and the Wizard of Oz (1908) by L Frank Baum
5. The Road to Oz (1909) by L Frank Baum
6. The Emerald City of Oz (1910) by L Frank Baum
7. The Patchwork Girl of Oz (1913) by L Frank Baum
8. Tik-Tok of Oz (1914) by L Frank Baum
9. The Scarecrow of Oz (1915) by L Frank Baum
10. Rinkitink in Oz (1916) by L Frank Baum
11. The Lost Princess of Oz (1917) by L Frank Baum
How the Wizard Came to Oz (1991) by Donald Abbott
The Nome King's Shadow in Oz (1992) by Donald Abbott and Gilbert M Sprague
The Wicked Witch of Oz (1993) by Rachel Cosgrove Payes
The Blue Witch of Oz (1993) by Eric Shanower
The Magic Chest of Oz (1993) by Donald Abbott
11. The Patchwork Bride of Oz (1993) by Gilbert M Sprague
12. The Tin Woodman of Oz (1918) by L Frank Baum
13. The Magic of Oz (1919) by L Frank Baum
14. Glinda of Oz (1920) by L Frank Baum
15. The Royal Book of Oz (1921) by Ruth Plumly Thompson
16. Kabumpo in Oz (1922) by Ruth Plumly Thompson
17. The Cowardly Lion of Oz (1923) by Ruth Plumly Thompson
18. Grampa in Oz (1924) by Ruth Plumly Thompson
19. The Lost King of Oz (1925) by Ruth Plumly Thompson
20. The Hungry Tiger of Oz (1926) by Ruth Plumly Thompson
21. The Gnome King of Oz (1927) by Ruth Plumly Thompson
22. The Giant Horse of Oz (1928) by Ruth Plumly Thompson
23. Jack Pumpkinhead of Oz (1929) by Ruth Plumly Thompson
24. The Yellow Knight of Oz (1930) by Ruth Plumly Thompson
25. Pirates in Oz (1931) by Ruth Plumly Thompson
26. The Purple Prince of Oz (1932) by Ruth Plumly Thompson
27. Ojo in Oz (1933) by Ruth Plumly Thompson
28. Speedy in Oz (1934) by Ruth Plumly Thompson
29. The Wishing Horse of Oz (1935) by Ruth Plumly Thompson
30. Captain Salt in Oz (1936) by Ruth Plumly Thompson
31. Handy Mandy in Oz (1937) by Ruth Plumly Thompson
32. The Silver Princess in Oz (1938) by Ruth Plumly Thompson
33. Ozoplaning With the Wizard of Oz (1939) by Ruth Plumly Thompson
34. The Wonder City of Oz (1940) by John R Neill
34. Yankee in Oz (1972) by Ruth Plumly Thompson
35. The Scalawagons of Oz (1941) by John R Neill
36. Lucky Bucky in Oz (1942) by John R Neill
37. The Magical Mimics in Oz (1946) by Jack Snow
38. The Shaggy Man of Oz (1949) by Jack Snow
40. Merry Go Round in Oz (1963) by Eloise Jarvis McGraw and Lauren McGraw
Father Goose in Oz (1994) by Donald Abbott
Lion Of Oz (1995) by Roger S Baum
The Speckled Rose of Oz (1995) by Donald Abbott
The Runaway in Oz (1995) by John R Neill
How the Wizard Saved Oz (1996) by Donald Abbott
The Lion of Oz and The Badge of Courage (1996) by Roger S Baum
The Amber Flute of Oz (1998) by Donald Abbott
The Rundelstone of Oz (2000) by Eloise Jarvis McGraw
The Hidden Prince of Oz (2000) by Gina Wickwar
The Green Star of Oz: A Special Oz Story (2000) by Roger S Baum
The Oz Odyssey (2006) by Roger S Baum