- O'Bryan, Tom
You Can Fix Your Brain
- O'Bryant, Karyn
Who Was Joan of Arc?
- O'Byrne, Brian F.
Desire of the Everlasting Hills
- O'Connor, Sandra Day
Out of Order
- O'Connor, Tim
Peyton Place
- O'Donnell, Ellen
Bless This Mess
- O'Donnell, Lawrence
Playing with Fire
- O'Dowd, Chris
Fantastic Mr. Fox and Other Animal Stories
- O'Halloran, Tim
Based on a True Story
- O'Hara-Baker, Jessica
The Mister
- O'Hare, Denis
The Alchemyst
- O'Hurley, John
It's Okay to Miss the Bed on the First Jump
- O'Keefe, Michael
The Way of Leadership
- O'Keefe, Robert
Sleeping With the Devil
- O'Malley, Rory
How to Survive a Plague
- O'Mara, Jason
The Break Line
- O'Neal, Ryan
Both of Us
- O'Neil, Cathy
Weapons of Math Destruction
- O'Neill, Eric
Gray Day
- O'Neill, Heather
The Likeness
- O'Reilly, Bill
The Silence of War
- O'Reilly, Ciaran
Yeats is Dead!
- O'Rourke, Kevin
Babylon Rising
- O'Rourke, Meghan
The Long Goodbye
- Oakes, Summer Rayne
How to Make a Plant Love You
- Oakley, Barbara
Mindshift
- Obama, Barack
Of Thee I Sing
- Obama, Michelle
Becoming
- Oberon, Elea
LeBootcamp Diet
- Obi, Damaras
Turning 15 on the Road to Freedom
- Ochlan, P.J.
John Brown, Abolitionist
- Ochman, Joe
Fooled by Randomness
- Odom, Leslie
Like No Other
- Oduye, Adepero
My Sister, the Serial Killer
- Offerman, Nick
The Greatest Love Story Ever Told
- Oh, Sandra
Human Acts
- Ojo, Adenrele
The Other Americans
- Olbermann, Keith
Trump is F*cking Crazy
- Older, Daniel José
Last Shot (Star Wars)
- Oldjohn, Khalipa
The First Part Last
- Oliver, Lin
Hank Zipzer #4: The Zippity Zinger
- Oliver, Mary
Dog Songs
- Olivo, Karen
The Brief Wondrous Life of Oscar Wao
- Ollivier, Debra
What French Women Know
- Olsher, Dean
From Square One
- Onayemi, Prentice
Crown of Thunder
- Ondaatje, Michael
Warlight
- Onwuachi, Kwame
Notes from a Young Black Chef
- Onwukwe, Ben
Gnomon
- Orbach, Jerry
White Jazz
- Ordunio, Doug
Guns, Germs, and Steel
- Oreskes, Dan
L.A. Rex
- Oreskes, Daniel
Haunting Paris
- Orlean, Susan
My Kind of Place
- Orloff, Judith
The Power of Surrender
- Orloff, Judith
The Power of Surrender
- Orlow, Rich
The Ruins
- Orman, Roscoe
They Had a Dream
- Orman, Suze
Women & Money (Revised and Updated)
- Ornish, Anne
Undo It!
- Ornish, Dean
Undo It!
- Ortega, Roxana
American Heroin
- Orth, Maureen
Vulgar Favors
- Ortiz, Jaina Lee
The Beloved World of Sonia Sotomayor
- Ortiz, Laura
La Princesa and the Pea
- Osborne, Gavin
The Undercover Economist Strikes Back
- Osborne, Mary Pope
Warriors in Winter
- Osborne, Steve
The Job
- Osbourne, Kelly
There Is No F*cking Secret
- Osgood, Nathan
The Road to Little Dribbling
- Osorio, Ana
The Grief Keeper
- Ovens, Sarah
The Adults
- Ovitz, Michael
Who Is Michael Ovitz?
- Owens, Bobbi
Up Close: Oprah Winfrey
- Oyeyemi, Helen
Gingerbread
- Ozeki, Ruth
A Tale for the Time Being
- O’Brien, Connor
The Bone Collector