- O'Bryan, Tom
You Can Fix Your Brain
- O'Bryant, Karyn
The Map of Lost Memories, Who Was Joan of Arc?
- O'Connor, Sandra Day
Out of Order, The Majesty of the Law
- O'Donnell, Lawrence
Playing with Fire, Playing with Fire
- O'Dowd, Chris
Fantastic Mr. Fox and Other Animal Stories, The Roald Dahl Collection, Volume 3
- O'Halloran, Tim
Based on a True Story
- 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'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, Heather
The Lonely Hearts Hotel, The Lonely Hearts Hotel
- O'Reilly, Bill
Culture Warrior, Who's Looking Out For You?
- O'Rourke, Meghan
The Long Goodbye
- Oakley, Barbara
Mindshift
- Obama, Barack
The Audacity of Hope, Dreams from My Father
- Obama, Michelle
Becoming, Becoming
- Oberon, Elea
LeBootcamp Diet
- Obi, Damaras
Turning 15 on the Road to Freedom, Turning 15 on the Road to Freedom
- Ochlan, P.J.
The Delight of Being Ordinary, The Great Beanie Baby Bubble
- Ochman, Joe
Chasing Phil, Law of the Jungle
- Odom, Leslie
Like No Other
- Oduye, Adepero
My Sister, the Serial Killer
- Offerman, Nick
The Greatest Love Story Ever Told, Lincoln in the Bardo
- Oh, Ellen
Flying Lessons & Other Stories, Flying Lessons & Other Stories
- Oh, Jina
A Step From Heaven
- Oh, Sandra
Human Acts
- Ojo, Adenrele
Nightflyers, Jefferson's Sons
- Olbermann, Keith
Trump is F*cking Crazy
- Older, Daniel José
Last Shot (Star Wars)
- Oldjohn, Khalipa
The First Part Last
- Oliver, Mary
Dog Songs
- Olivo, Karen
The Brief Wondrous Life of Oscar Wao, The Brief Wondrous Life of Oscar Wao
- Onayemi, Prentice
Beasts Made of Night, True Legend
- Ondaatje, Michael
The Cat's Table, Warlight
- Onwukwe, Ben
The Gap of Time, Gnomon
- Ordunio, Doug
Crashing Through, How to Think Like Leonardo da Vinci
- Oren, Michael B.
Ally
- Oreskes, Dan
L.A. Rex
- Oreskes, Daniel
Suite Francaise
- Orloff, Judith
Positive Energy, Emotional Freedom
- Orloff, Judith
The Ecstasy of Surrender, The Power of Surrender
- Orlow, Rich
The Ruins, Daughter of War
- Orman, Roscoe
They Had a Dream
- Orman, Suze
Women & Money (Revised and Updated), The Money Class
- Ornish, Dean
Enjoy Every Sandwich
- Ortega, Roxana
Random Family, Lola
- Orth, Maureen
Vulgar Favors
- Ortiz, Jaina Lee
The Beloved World of Sonia Sotomayor, The Beloved World of Sonia Sotomayor
- Ortiz, Laura
La Princesa and the Pea, The Care and Feeding of a Pet Black Hole
- Osborne, Mary Pope
A Good Night for Ghosts, Carnival at Candlelight
- Osborne, Steve
The Job
- Osbourne, Kelly
There Is No F*cking Secret
- Osgood, Nathan
The Road to Little Dribbling, The Road to Little Dribbling
- Ovens, Sarah
The Adults
- Ovitz, Michael
Who Is Michael Ovitz?
- Owens, Bobbi
Up Close: Oprah Winfrey
- Oyeyemi, Helen
Gingerbread, Gingerbread