You searched for books with "O" in the title. Here’s what I dug up.

Title Subtitle Call number Author Illustrator Series Book type Subjects
Obi Gerbil on the Loose! Del Delaney, Michael Fiction Children; Families; Animals; Pets View
Obi: Gerbil on the Loose Del Delaney, Michael Delaney, Michael Fiction Adventure; Escapes View
Observing the Sky 522 Sto Stott, Carole Nonfiction Stars; Constellations; Astronomy; Planets; Moon; Comets; Meteors; Galaxies; Observatories; View
Oceans 577.7 McM McMillan, Beverly and Musick, John A. Nonfiction Oceans; Sharks; Shores; Mammals, sea; Seabirds; Ocean life; Ocean exploration; Coral reefs; Deep sea creatures; Estuaries View
Ocean Life Dictionary An A to Z of Ocean Life 591.77 Twi Twist, Clint Bronson, Richard, et al. Nonfiction Fish; Oceans; Dictionaries, picture; Wildlife, oceans View
Octopuses One to Ten E Jac Jackson, Ellen Page, Robin Easy Counting; Octopus View
An Octopus Is Amazing E Lau Lauber, Patricia Keller, Holly Easy Octopus View
Odd and the Frost Giants Gai Gaiman, Neil Helquist, Brett Fiction Heroes; Giants; Norway; Norse gods; Mythology, norse View
Oddball Eyeballs A Book on Vision and How Weird It Is 612.8 Klu Klutz, eds. Nonfiction Glasses; Sight; Eyes; Perspective; 3-d; View
Odd Owls & Stout Pigs : A Book of Nonsense / E Lob Lobel, Arnold. Lobel, Adrianne, illus E Pigs; Owls View
Theodore 92 Roo Keating, Frank Wimmer, Mike Nonfiction Presidents; Roosevelt, theodore; United states, government; Spanish-american war, the; Rough riders, the View
Theodore Roosevelt 92 Roo Markham, Lois Nonfiction Presidents; Roosevelt, theodore; History, modern-early 20th century; United states, government; Spanish-american war, the; Rough riders, the View
Odysseus in the Serpent Maze Yol Yolen, Jane and Harris, Robert J. Fiction Heroes; Snakes; Odysseus; Mythology, greek;; Penelope (greek mythology); View
Of Colors and Things E Hob Hoban, Tana. E Color View
Officer Buckle and Gloria E Rat Rathmann, Peggy. Rathmann, Peggy, illus. E Police officers; Dogs; Police dogs; Safety View
Off the Map The Journals of Lewis and Clark 978 Roo Roop, Peter and Connie Tanner, Tim Nonfiction Pacific northwest; Lewis and clark expedition; United states--history--miscellanea; Exploration, united states View
Off to Plymouth Rock! E Mac Mackall, Dandi Daley. Barretta, Gene, illus E Thanksgiving; Pilgrims View
Off to School, Baby Duck! E Hes Hest, Amy. Barton, Jill, illus Baby Duck E Ducks; School; Grandparents View
Off We Go to Mexico! An Adventure in the Sun E Kre Krebs, Laurie Corr, Christopher Easy Mexico; Travel; Spanish words; History, mexico; Geography View
Of Nightingales That Weep Pat Paterson, Katherine Wells, Haru Fiction Japan; Samurai; Daughters; Medieval life View
Oggie Cooder Wee Weeks, Sarah Weeks, Sarah Fiction Friendship; Schools; Eccentricity; Self-worth; Ability; Celebrities View
Oggie Cooker Wee Weeks, Sarah. Weeks, Sarah, illus Fic Eccentricity; Performing View
Ogres of Ohio Ran Rand, Johnathan American Chillers Fiction Ogres; Ohio; Ghouls; View
Oh, My, Pumpkin Pie! ER Ghi Ghigna, Charles. Spengler, Kenneth, illus Fiction Pumpkins View
Oh, No, Noah! EC Hur Hurwitz, Johanna. Reed, Mike, illus Fiction Moving; Identity; Friendship View
Oh, the Places He Went A Story about Dr. Seuss 92 Seu Weidt, Maryann N. Maguire, Kerry Nonfiction Illustrators, children's books; Authors, children's books; Seuss, dr.; Geisel, theodor seuss View
Oh, the Places You'll Go! E Seu Dr. Seuss. Dr. Seuss, illus E Perseverance; Success View
Oh, Rats! The Story of Rats and People 599.33 Mar Martin, Albert Mordan, C.B. Nonfiction Rats; Disease; Adaptation, animal; Rodents View
Oh, Tucker! E Kro Kroll, Steven. E Dogs; Clumsiness View
Oh, What a Thanksgiving! Kro Kroll, Steven Schindler, S.D. Fiction Thanksgiving; Imagination; Pilgrims View
Oh, Yikes! History's Grossest, Wackiest Moments 902.07 Mas Masoff, Joy Sirrell, Terry Nonfiction History View
Oil 665.5 Far Farndon, John Nonfiction Oil; Refineries, oil; Oil drilling; Energy;; Energy, alternative View
Oil 665.5 Far Farndon, John Nonfiction Oil; Refineries, oil; Oil drilling; Energy;; Energy, alternative View
Oink and Pearl E Cho Chorao, Kay. Chorao, Kay, illus E Pigs; Siblings View
Okay for Now Sch Schmidt, Gary D. Fiction Friendship; Birds; Theater; Middle school; Audubon, john james;; New york (state);; Families, dysfunctional View
Old Black Flly. E Ayl Aylesworth, Jim. Gammell, Stephen, illus E Flies; Alphabets View
Old Mother West Wind SC Bur Burgess, Thornton W. Kliros, Thea Story Collection Foxes; Rabbits; Frogs; Animals, talking;; Peter cottontail; Environment; Wildlife View
Old Turtle E Woo Wood, Douglas. Chee, Cheng-Khee, illus E God View
Old Yeller Gip Gipson, Fred Fiction Dogs; Texas; Single-parent families View
Olive, the Other Reindeer E Wal Walsh, Vivian. Seibold, J. Otto, illus E Christmas; Reindeer; Dogs; Homophones; Santa claus View
Oliver ER Hof Hoff, Syd Hoff, Syd, illus Fiction Elephants View
Oliver, Amanda, and Grandmother Pig E Van Van Leeuwen, Jean. Schweininger, Ann, illus E Pigs; Grandparents View
Oliver Button Is A Sissy E deP dePaola, Tomie dePaola, Tomie Fiction Individuality; Dancing; Costumes View
Oliver Twist Dic Dickens, Charles Fiction Children; Families; Thieves; Poverty; London; Resourcefulness View
Olivia and the Rain Dance E Tes Maggie Testa Easy Pigs; Rain; Sailboats View
Olivia Bean Trivia Queen Bea Gephart, Donna Fiction Facts and trivia; Trivia; Game shows View
Olivia Cooks Up a Surprise E Sol Emily Sollinger Fared Osterhold Olivia Fiction Birthday parties; Children; Family; Mothers; Pigs View
Olivia Helps with Christmas E Fal Falconer, Ian. Falconer, Ian, illus E Christmas; Pigs; Helpfulness View
Olivia Saves the Circus E Fal Falconer, Ian. Falconer, Ian, illus E Pigs; Circuses; School; Imagination; Show-and-tell View
Olivia Trains Her Cat ER Alb Albee, Sarah Johnson, Shane L. Easy Pigs; Cats View