| Title | Author | ISBN | Call # | Loc | Action |
| The Odd Couple | Simon, Neil | | PS3537.I663 O3 | attic - pbfic007 | View |
| The Odes And Epodes Of Horace | Horace | | PA6111.C7 H6 | house - lang | View |
| The Old Die Rich and other Science Fiction Stories | Gold, H. L. | | PR9199.3.G5975 | | View |
| The Old Farmer's Almanac 2008 | Thomas, Robert B. | 0078-4516 | AY81.F3 O6 2008 | attic | View |
| The Old Farmer's Almanac 2010 | Thomas, Robert B. | 0078-4516 | AY81.F3 O6 2010 | attic - psy034 | View |
| The Omnivore's Dilemma: A Natural History of Four Meals | Pollan, Michael | 0-14-303858-0 | GT2850.P65 | attic - his006 | View |
| The Once and Future King | White, T. H. | 0-441-62740-4 | PZ3.W5854 On | house - pbfic | View |
| The One Minute Manager | Blanchard, Kenneth and Johnson, Spencer | 0-425-06265-1 | HD31.B527 | rental - other | View |
| The One-Straw Revolution | Fukuoka, Masanobu | 1-59017-313-8 | S604.F8413 | house - agriculture | View |
| The Operation, Care, and Repair of Farm Machinery | Deere & Company | | S675.D37 | house - agriculture | View |
| The Optoelectronics Data Book for Design Engineers | Texas Instruments | 0-89512-? | TK7871.89.L53 T | attic - db015 | View |
| The Origami Handbook | Beech, Rick | 1-84309-212-3 | TT860.O6b ghn | attic - tech038 | View |
| The Origin and Diversification of Language | | 0-040228-46-7 | P106.S9 | rental - other | View |
| The Origin of Consciousness in the Breakdown of the Bicameral Mind | Jaynes, Julian | 0-395-32440-8 | BF311.J36 | rental - psy | View |
| The Origins and Growth of Archaeology | Daniel, Glyn | | CC100.D27 1968 | attic - relhis005 | View |
| The Origins of Modern Science | Butterfield, Herbert | | Q125.B97 | attic - sci036 | View |
| The Outcasts of 19 Schuyler Place | Konigsburg, E. L. | 0-689-86636-4 | PZ7.K8352 Ou | attic - fic021 | View |
| The Outdoor How-to-Build-It Book | Behme, Robert Lee | | SB473.B38 | ??? | View |
| The Overcoat and Other Tales of Good and Evil | Gogol, Nicolai V. | 0-393-00304-3 | PG3333.A15 ghn | rental - lang | View |
| The Overstory | Powers, Richard | 978-0-393-35668-7 | PS3566.O92 O94 | house - n3s3 | View |