Featured Authors
Authors
= Author On Tour
- T. Orr Munro
- David Orrell
- Ngaire Orsborn
- Cheryl Orsini
- Kate Orsini
- Mallory Ortberg
- Eve Ortega
- Mirelle Ortega
- Nathalie Ortega
- Roxana Ortega
- Mike Ortego
- Amparo Ortiz
- David Ortiz
- Michael J. Ortiz
- Valentina Ortiz
- Vico Ortiz
- Victoria Ortiz
- Elisabeth Ortiz Lambert
- Nick Ortner
- David Ortu
- Davide Ortu
- George Orwell
- Alison Orwig
- Sara Orwig
- Joanna Orwin
- Naomi Osaka
- Diane Osbon
- Anna Osborn
- Elane Osborn
- Gavin Osborn
- Jesse Osborn
- Karen Osborn
- Bella Osborne
- Charles Osborne
- Claire G. Osborne
- George Osborne
- Jennifer Osborne
- Joanna Osborne
- Maggie Osborne
- Mary Pope Osborne
- Richard Osborne
- Lucia Osborne-Crowley
- James Oseland
- Alice Oseman
- Anthony Oseyemi
- Eulalie Osgood Grover
- Claire Oshetsky
- Mark Oshiro
- Andi Osho
- Joy Osmanksi
- Joy Osmanski
- Philip Osment
- E.C. Osondu
- Ana Osorio
- Lee Osorio
- Marie Ostby
- Patrick Oster
- Lucy Osterfeld
- Dori Ostermiller
- Molly Knox Ostertag
- Nicholas Ostler
- Brutus Ostling
- Joan K. Ostling
- Richard Ostling
- Barbara G Ostmann
- Micol Ostow
- Emil Ostrovski
- Eloghosa Osunde
- James Oswald
- Pete Oswald
- Patton Oswalt
- June Otani
- Steven Otfinoski
- Emma Otheguy
- Zaharah Othman