| O Wonderful, Wonderful Wizard of Oz |
2022 |
| O.Z. Diggs Himself Out |
2018 |
| O.Z. Doesn't Diggs G.C.C. At Emerald City |
2021 |
| Obvious Secret Lesson of the Wizard of Oz: A Metaphysical Interpretation of |
2020 |
| Odd Tale of Osoenft in Oz, The |
1994 |
| Of Cabbages, Kings and Even (Odd) Queens of Wonderland and Oz: A Gothic Young Adult Crossover Novel (Volume 1) |
2011 |
| Of Cabbages, Kings, Queens, Flying Pigs, and Dismal Things |
2015 |
| Of Dismal Things to Do and Deeply Sympathizing |
2014 |
| Of The Woods |
2015 |
| Of Witches and Wizards (Once Upon a Darkened Night Book 9) |
2017 |
| Off To Kill the Wizard (Return to Oz With a Vengeance: Book 1) |
2019 |
| Official 50th Anniversary Pictorial History The Wizard of Oz, The |
1989 |
| Oh, My God!: Moving Beyond Emerald City |
2016 |
| Ojo in Oz |
1933 |
| Old Ones of Oz, The |
2025 |
| Omby Amby in Oz |
1974 |
| On Submitting Manuscripts to Buckethead Enterprises of Oz |
1990 |
| On Watching the Wonderful Land of Oz for the First Time |
2025 |
| Once Upon A Quest: Fifteen Tales of Adventure |
2018 |
| Once Upon a Time and Other Stories |
1917 |
| Once upon a Time Map Book: Your Guide to the Enchanted Forest, the Giant's Kingdom, Neverland, the Land of Oz, Aladdin's Kingdom, Wonderland and a Pop-Up Royal Castle, The |
1999 |
| Once Upon A Wish: 16 Dreamy Faerie Tales (Once Upon Series Book 6) |
2021 |
| Only Bad Witches are Ugly: A Reverse Harem Academy Romance (Emerald City Academy Book 4) |
2021 |
| Operation Ruby Slipper |
2011 |
| Ophie Out of Oz |
2004 |
| Orb of Neverland, The |
2016 |
| Order and Surprise |
1983 |
| Order of the Wicked (Dorothy Must Die Series Prequel Book 7) |
2016 |
| Origin of the Wizard of Oz, The |
2013 |
| Ork in Oz, The |
1974 |
| Orphan Sorceress of Oz, The: An Epic Fairy Tale Adventure (The Hidden History of Oz) |
2017 |
| Orphans of Oz: A Mother's Adventure |
2020 |
| Oscar Diggs, The Wizard of Oz |
2021 |
| Oscar Zoroaster Phadrig Isaac Norman Henkle Emmannuel Ambroise Diggs of Oz |
2019 |
| Other Side of Oz, The |
1993 |
| Other Side of Oz, The |
2021 |
| Other Side of the Rainbow, The: With Judy Garland on the Dawn Patrol |
1970 |
| Other Side of Time, The |
1965 |
| Other Wizard of Oz, The (Shadow of Oz Volume 3) |
2016 |
| Our Landlady |
1941 |
| Our Landlady |
1996 |
| Our Trip to Oz |
1989 |
| Out of Oz |
2011 |
| Outsiders From Oz |
2012 |
| Over the Rainbow (Book & Audio CD) |
2010 |
| Over the Rainbow (Noonan) |
2002 |
| Over the Rainbow (Parrish) |
2000 |
| Over the Rainbow: God's Eye for the Gay Guy |
2017 |
| Over the Rainbow: The Life and Rhymes of Yip Harburg |
2015 |
| Over the Rainbow: The Wizard of Oz as a Secular Myth of America |
1991 |
| Oz |
2017 |
| Oz |
2018 |
| Oz |
2024 |
| Oz (Comic Series #1-20 & 12 Special Issues) |
1994 |
| Oz (Wonderland Book 2) |
2021 |
| Oz 2021 Annual: Patchwork Girl |
2021 |
| Oz 2022 Annual: Dominion of Ozmo |
2022 |
| Oz Abridged (Prose & Poetry) |
2025 |
| Oz Album, An |
2001 |
| Oz and Beyond: The Fantasy World of L. Frank Baum |
1997 |
| Oz and Ends: Wisdom from the Emerald City |
2011 |
| Oz and the Musical: Performing the American Fairy Tale |
2022 |
| Oz and the Three Witches |
1977 |
| Oz Before the Rainbow: L. Frank Baum's The Wonderful Wizard of Oz on Stage and Screen to 1939 |
2000 |
| Oz Behind the Iron Curtain: Aleksandr Volkov and His Magic Land Series |
2017 |
| Oz Clan, The |
2011 |
| Oz Code, The |
2024 |
| Oz Encounter, The |
1977 |
| Oz Enigma, The |
2013 |
| Oz Factors, The: |
1998 |
| Oz Files, The |
2016 |
| Oz Game Book, The |
1996 |
| Oz Has Spoken: A Reverse Harem Academy Romance (Emerald City Academy Book 3) |
2023 |
| Oz House |
2013 |
| Oz House Reopened: The Curse of Budistiltskin |
2018 |
| Oz in Aberdeen: A Catalogue of the L. Frank Baum Collection At the Alexander Mitchell Library |
1997 |
| Oz in Canada |
1982 |
| Oz in Perspective: Magic and Myth in the L. Frank Baum Books |
2007 |
| Oz Is Kansas |
2017 |
| Oz Kids and Our Auntie Em |
2005 |
| Oz Light |
1997 |
| Oz No Place Like Home (Comic Book One Shot) |
2016 |
| Oz Odyssey, The |
2006 |
| Oz Omnibus of Talking City Tales, The |
2014 |
| Oz Picture Gallery, An |
1984 |
| Oz Power: How to Click Your Heels and Take Total Charge of Your Life |
2005 |
| Oz Principle, The: Getting Results Through Individual and Organizational Accountability |
1998 |
| Oz Reimagined: Dorothy Dreams |
2013 |
| Oz Reimagined: New Tales from the Emerald City and Beyond |
2013 |
| Oz Revisited |
2024 |
| Oz Scrapbook, The |
1977 |
| Oz Sketchbook, An |
1998 |
| Oz Squad: March of the Tin Soldiers |
2011 |
| Oz Stories of Vincent Ward, The |
2007 |
| Oz Sucks |
2016 |
| Oz the Adventure (Oz the Forgotten Tales Book 2) |
2021 |
| Oz the Beginning (Oz the Forgotten Tales Book 1) |
2021 |
| Oz the Great and Powerful (Audiobook) |
2017 |
| Oz The Great and Powerful: A Magical Sticker Set |
2013 |
| Oz The Great and Powerful: Land of Oz, The (World of Reading) |
2013 |
| Oz The Great and Powerful: The Movie Storybook |
2013 |
| Oz The Great and Powerful: Witches of Oz, The |
2013 |
| Oz The Great and Powerful: With 8 Pages of Photos From The Movie! (Junior Novelization) |
2013 |
| Oz the Magic (Oz the Forgotten Tales Book 5) |
2023 |
| OZ The Musical |
2011 |
| Oz The North Warlock |
2019 |
| Oz the Romance (Oz the Forgotten Tales Book 3) |
2021 |
| Oz The Sword of Power |
2024 |
| Oz the Witches (Oz the Forgotten Tales Book 4) |
2021 |
| Oz Toy Book - Cut-outs for the Kiddies, The |
1915 |
| Oz Toy Book - Cut-Outs for the Kiddies, The - Volume 2 |
1994 |
| Oz Will Fall: No Place Like Home |
2024 |
| Oz Will Fall: The Grimoire |
2017 |
| Oz Will Fall: The Royal Marriage |
2016 |
| Oz Will Fall: Wicked Rebirth |
2020 |
| Oz-Story Magazine No. 1 |
1995 |
| Oz-Story Magazine No. 2 |
1996 |
| Oz-Story Magazine No. 3 |
1997 |
| Oz-Story Magazine No. 4 |
1998 |
| Oz-Story Magazine No. 5 |
1999 |
| Oz-Story Magazine No. 6 |
2000 |
| Oz-Stravaganza Yearbook 2015 |
2015 |
| Oz, Dog of the Del |
2015 |
| Oz, Part 1 |
2023 |
| Oz, Part 2: The Warrior |
2024 |
| Oz, The rise of the Scarecrow |
2025 |
| Oz, Wizard Deluxe |
2013 |
| Oz, Wonderland & Other Places |
2018 |
| OZ: A Fantasy Role-Playing Setting |
2022 |
| Oz: A Magical Journey |
2023 |
| Oz: An Erotic Adaption of Wizard Of Oz: Power. Pleasure. |
2025 |
| Oz: Dark & Terrible Roleplaying Game Core Rulebook |
2010 |
| Oz: Fall of the Emerald City #1 |
2024 |
| Oz: Fall of the Emerald City #2 |
2024 |
| Oz: Fall of the Emerald City #3 |
2024 |
| Oz: Heart of Magic |
2020 |
| OZ: Journey, Power, Illusion Along the Yellow Brick Road of Myth and Modernity: A Historical and Analytical Exploration of L. Frank Baum's The Wonderful Wizard of Oz |
2025 |
| Oz: Kingdom of the Lost #1 |
2023 |
| Oz: Kingdom of the Lost #2 |
2023 |
| Oz: Kingdom of the Lost #3 |
2024 |
| Oz: One Wizard’s Carnage |
2025 |
| Oz: One Wizard’s Carnage (Oz Book #2) |
2025 |
| Oz: Return of the Wicked Witch #2 |
2022 |
| Oz: Return of the Wicked Witch #3 |
2023 |
| Oz: Return of the Wicked Witch #1 |
2022 |
| Oz: The Final Journey |
2014 |
| Oz: The Hundredth Anniversary Celebration |
2000 |
| Oz: The Manga: Pocket Manga Edition (Comic Book Collected Edition) |
2006 |
| Oz: The Tablet of Destinies |
2025 |
| Oz: The Time of Shadows |
2016 |
| Oz/Wonderland Chronicles, The: Book One (Comic Book Collected Edition) |
2011 |
| Oz/Wonderland Chronicles: Book Two (Comic Book Collected Edition) |
2012 |
| Oz/Wonderland Chronicles: Prelude, The (Comic Book Collected Edition) |
2013 |
| Ozallooning in Oz |
2003 |
| OzCon 2016 |
2016 |
| OZF5: Gale Force (Graphic Novel) |
2005 |
| Oziads, The |
1995 |
| Ozian Adventure of Pickleless & Blu, The |
2012 |
| Oziana #1 |
1971 |
| Oziana #10 |
1980 |
| Oziana #11 |
1981 |
| Oziana #12 |
1982 |
| Oziana #13 |
1983 |
| Oziana #14 |
1984 |
| Oziana #15 |
1985 |
| Oziana #16 |
1986 |
| Oziana #17 |
1987 |
| Oziana #18 |
1988 |
| Oziana #19 |
1989 |
| Oziana #2 |
1972 |
| Oziana #20 |
1990 |
| Oziana #21 |
1991 |
| Oziana #22 |
1992 |
| Oziana #23 |
1993 |
| Oziana #24 |
1994 |
| Oziana #25 |
1995 |
| Oziana #26 |
1996 |
| Oziana #27 |
1997 |
| Oziana #28 |
1998 |
| Oziana #29 |
1999 |
| Oziana #3 |
1973 |
| Oziana #30 |
2000 |
| Oziana #31 |
2001 |
| Oziana #32 |
2002 |
| Oziana #33 |
2003 |
| Oziana #34 |
2004 |
| Oziana #35 |
2005 |
| Oziana #36 |
2006 |
| Oziana #37 |
2007 |
| Oziana #38 |
2008 |
| Oziana #39-40 |
2011 |
| Oziana #4 |
1974 |
| Oziana #41 |
2011 |
| Oziana #42 |
2012 |
| Oziana #43 |
2013 |
| Oziana #44 |
2014 |
| Oziana #45 |
2015 |
| Oziana #46 |
2016 |
| Oziana #47 |
2017 |
| Oziana #48 |
2018 |
| Oziana #49 |
2019 |
| Oziana #5 |
1975 |
| Oziana #50 |
2020 |
| Oziana #51 |
2021 |
| Oziana #52 |
2022 |
| Oziana #53 |
2024 |
| Oziana #54 |
2024 |
| Oziana #6 |
1976 |
| Oziana #7 |
1977 |
| Oziana #8 |
1978 |
| Oziana #9 |
1979 |
| Oziana Stories of Gina Wickwar, The |
2016 |
| Ozland (Everland, Book 3) |
2018 |
| Ozma (Faeries of Oz Book 3) |
2021 |
| Ozma and the Little Wizard |
1913 |
| Ozma and the Wayward Wand |
1985 |
| Ozma Gets Really Pissed off and Cusses and Totally Offends (almost) Everyone in Oz |
1990 |
| Ozma of Odious Oz (Nightmares of Oz Book 3) |
2025 |
| Ozma of Oz |
1907 |
| Ozma of Oz (Comic Book Collected Edition) |
2011 |
| Ozma of Oz or The Magnet of Love: A Musical Extravaganza In Two Acts |
2014 |
| Ozma Of Oz: Classic Tales in Rhyme |
2025 |
| Ozma's Demons: A Reverse Harem Paranormal Fantasy (Princesses of Oz Book 2) |
2020 |
| Ozmapolitan of Oz |
1985 |
| Ozmosis: A Mad About the Hatter Book (Mad About the Hatter Books 2) |
2022 |
| OZmosis: The Enduring Popularity & Artistic Influence of The Wizard of Oz |
2025 |
| OzNet: Follow the Yellow Brick Code |
2025 |
| Ozoids, The: Limericks in Oz |
1986 |
| Ozoplaning with the Wizard of Oz |
1939 |
| Ozoplaning with the Wizard of Oz: Classic Tales in Rhyme |
2025 |
| Ozopolis (Comic Series #1-4) |
2010 |
| OZtory in Verse: The Wonderful Wizard of Oz |
2021 |
| Ozzymandias of Oz |
2017 |
