Title  | Type | Author | AR Info
Level / Points | Awards |
| Out Of The Dust | Fiction | Hesse, Karen | | |
| Out Of Darkness: The Story Of Lo... | Fiction | By Russell Freedm... | | |
| Our Yard Is Full Of Birds | Fiction | Anne Rockwell, Li... | | |
| Our Town | Fiction | Thornton Wilder, | 3.9 / 3 | |
| Our Town | Fiction | Thornton Wilder, | 3.9 / 3 | |
| Our Town | Fiction | Thornton Wilder, | 3.9 / 3 | |
| Our Country's Story | Fiction | Cavanah, Frances | | |
| Our Amazing Planet | NF | Company, The Nature | | |
| Otherwise Known As Sheila The Great | Fiction | Blume, Judy | | |
| Oscar Otter | Fiction | Benchley, Nathaniel | | |
| Oregon Trail: The Diary Of Call... | Fiction | Sokoloff, Myka-lynne | | |
| Orange Outlaw (A To Z Mysteries)... | Fiction | Ron Roy, John Ste... | | |
| Orange Outlaw (A To Z Mysteries)... | Fiction | Roy, Ron | 3.6 / 1 | |
| Opossum And The Great Firemaker:... | Fiction | Reasoner, Jan M. ... | | |
| Operation: Huttlet (Star Wars: T... | Fiction | Steele Tyler Fili... | | |
| Operation Fowl Play | Fiction | Strange, Spencer | | |
| One Of Each | Fiction | Hoberman, Mary Ann | 4.5 / 0.5 | |
| One Hundredth Thing About Caroli... | Fiction | Lowry, Lois | | |
| One Fine Day | Fiction | Hogrogian, Nonny | 3.5 / 0.5 | |
| One Day In The Woods | Fiction | Jean Craighead Ge... | | |
| One Day In The Woods | Fiction | Jean Craighead Ge... | | |
| One Day In The Tropical Rain Forest | Fiction | Jean Craighead Ge... | | |
| One Day In The Tropical Rain Forest | Fiction | Jean Craighead Ge... | | |
| One Day In The Tropical Rain Forest | Fiction | Jean Craighead Ge... | | |
| One Day In The Prairie | Fiction | Jean Craighead Ge... | | |
