Detailed bibliographies with links to online stores and dedicated sites.

G. G. O'Bannon
James O'Barr
Devin O'Branagan
Edna O'Brien
Fitz-James O'Brien
Flann O'Brien
Gerry O'Brien
Judith O'Brien
Richard J. O'Brien
Richard O'Brien

Robert C. O'Brien
William M. O'Brien Jr
Maxine O'Callaghan
Sean O'Connel
Jack O'Connell
Joseph E. O'Day
Constance O'Day-Flannery
Scott O'Dell
K. M. O'Donnell
Kevin O'Donnell, Jr.

Lawrence O'Donnell
Kristina O'Donnelly
Seamus O'Donoghue
Nick O'Donohoe
Sean O'Faolain
George O'Har
Clancy O'Hara
Michael O'Hara
W. H. O'Hare
Claudia O'Keefe

Janeen O'Kerry
Michelle O'Leary
Patrick O'Leary
Daniel O'Mahony
Marie O'Mahony
Kathleen O'Malley
Chris O'Neal
Dennis O'neil
Gene O'Neill
Joseph O'Neill

Kevin O'Neill
Pamela O'Neill
Terry O'Neill
Timothy O'Neill
Tom O'Neill
Timothy O'Reagan
Jackson O'Reilly
Paddy O'Reilly
Tony O'Reilly
Michael O'Rourke

Bill O'Shea
Pat O'Shea
Patti O'Shea
Bill Oakley
Graham Oakley
J. M. Oakley
Joyce Carol Oates
Ann O'Bannon
Janice Oberding
James E. Oberg

Sheldon Oberman
Charles Oberndorf
Angus Oblong
David Obrey
Merréll O'Brian
Patrick J. O'Brian
Aurelio O'Brien
Brandon O'Brien
Charles O'Brien
Howard O'Brien

James Obrien
Jonathan Shane O'Brien
Kevin O'Brien
Maureen O'Brien
Vladimir Obruchev
Raymond Obstfeld
Shirlene Obuobi
Jose Ocegueda
George Ochoa
Miguel Ochoa

Weston Ochse
Randy Ockey
Carol O'Connell
Ed O'Connor
K. E. Sean O'Connor
Kerrie O'Connor
Norreys Jephson O'Conor
Deirdre O'Dare
Carol Cole O'Dell
Rae Odell

Sally Odgers
T.B. Odin
E. V. Odle
Mel Odom
Elliott O'Donnell
Frank O'Donnell
Royce O'Donnell
Dermot O'Donovan
Eimar O'Duffy
Joy Oestricher

Auriga Of Aldebaran
Charles O'Fearghail
Mary O'Ferrall
Andrew J. Offutt
Michael Offutt
Sphyrex of Shobol
Ray Ogar
Issui Ogawa
Jacqueline K. Ogburn
Charles Ogden

Dennis Ogden
Ian Ogilvy
Noriko Ogiwara
J. Ogle
Michael O'Graves
Dan O'Haire
Shane O'Halloran
Sue O'Halloran
Tracey O'hara
Diana O'Hehir

Ben Ohlander
David Ohle
Vernon Oickle
Siva Gopal Ojha
Willa Okati
Janette Oke
Deborah O'Keefe
John O'Keefe
Robert O'Kennedy
R.A.B.J. Oker

Ryan E. Okerlund
Luke Okoli
U. Collins Okonkwo
Ed Okonowicz
Nnedi Okorafor-Mbachu
Ben Okri
Hitoshi Okuda
Susan Torian Olan
Joseph D. Olander
Jenny Oldfield

June Oldham
Justin Oldham
Nick Oldham
Trevor Oldham
Jack Olesker
Keith Olexa
Olivia Olguin
Margaret Oliphant
D. Michael Olive
Andrew Oliver

Chad Oliver
Frances Oliver
Georgia Oliver
Gloria Oliver
Jana G. Oliver
Jarrett Oliver
Narelle Oliver
Stanley Oliver
Stephen Ryan Oliver
Teagan Oliver

Michael Oliveri
Erika Oller
Ashley Olsen
Charles Olsen
Kent L. Olsen
Lance Olsen
Mark Andrew Olsen
Arielle North Olson
Celene A. Olson
Colleen O'Connor Olson

David Paul Olson
John B. Olson
K.J. Olson
Karen E. Olson
Kiki Olson
Marilyn Olson
Mark L. Olson
Paul F. Olson
Priscilla Olson
Toby Olson

Jerry Oltion
Kathy Oltion
Tope Oluwole
Kevin O'Malley
Richard S. Omura
Stewart O'Nan
James O'Neal
Katherine Pebley O'Neal
Joan O'Neil
Anthony O'Neill

Dennis O'Neill
Devlin O'Neill
Michelle O'Neill
Linda A. Oness
Oliver Onions
Linda Opdyke
David Oppegaard
Kenneth Oppel
E. Phillips Oppenheim
Joseph B. Oppenheim

Shulamith Oppenheim
A. Oral
Hiawyn Oram
John Oram
John Peter Orban
Kerry Orchard
Nicholas J. Ordinans
John J. Ordover
Rebecca Ore
Lance Oren

Fran Orenstein
Douglas Orgill
John O'Riley
Dave Orion
Christopher Orland
Alvin Orloff
Kate Orman
Rich Ormbrek
David Orme
Edward Ormondroyd

Donte Ormsby
Richard H. Orndorff
Frank O'Rourke
Thompson O'Rourke
A. Orr
Bruce A. Orr
Melody Orr
Tom Orrell
Joshua Ortega
Raymond Ortega

Bjorn Ortenheim
Kerri L. Ortiz
Joe Orton
George Orwell
Arimasa Osawa
David Osborne
Stephanie Osborn
Cary Osborne
Cathy C. Osborne
Denise Osborne

Mary Pope Osborne
Victor Osborne
William Osborne
Juilene Osborne-McKnight
Natalie Osborne-Thomason
Brian Osburn
Jesse Osburn
David Oser
Bernadette Bay O'Shaughnessy
Perri O'Shaughnessy

Jeffrey Osier
John Osier
Nina M. Osier
J. Lewis Osler
Samira Osman
Ray A. Ostenberg
John Oster
Dwayne Osterbauer
W. R. Osterhout
Anne Osterlund

Helen M. Osterman
Adam Osterweil
Amanda Ostheller
Micol Ostow
Neil D. Ostroff
Carol Ostrouch
Kim Ostrow
Steven Otfinoski
Otsuichi
Charlotte F. Otten

Gerald Otten
Duke Otterland
John Otto
Richard Otto
Susan Oudot
Pierre Ouellette
Archie E. Ouglie
Fran Oui
Chris Ould
Arizona Oum

Simon Ounsley
Fulton Oursler
P. D. Ouspensky
K. M. Outten
Shirley Ouw
Ben Overman
Mary Overman
Jeffrey Overstreet
Ariana Overton
Max Overton

Robin L. Overton
Betty M. Owen
David Owen
Diane Hope Owen
Frank Owen
J. Bradley Owen
James A. Owen
Mably Owen
Pierce Owen
C. Wayne Owens

Claire Myers Spotswood Owens
Everett Owens
Jeanne M. Owens
L. M. Owens
Mary Beth Owens
Miles Owens
Robin D. Owens
Mark Owings
Lillian Owl
Chris Oxlade
David Anthony Oxley
Dorothy Oxley
Cynthia Ozick
 

Sequels, prequels, series in their reading order and books belonging to a common universe.

O'Brien Detective Agency, The
O'Keefe Family
O.M.A
Oath of Empire
Oathbreaker
Obernewtyn Chronicles
Oberron - Lost Mark, The
Oberron - The Legacy of Dhakaan
Obloeron
Obsession

Obsidian Chronicles, The
Obsidian Trilogy, The
Occasion Mists, The
Occult Connection
Oceans of Fate Saga
October Daye
Odan the Half-God
Odd Jobs, Inc
Odd Parents! Ready-to-Read
Odd Thomas

OddParents
Odelia Grey
Odyssey
Of Honor and Treason
Of Man and Manta
Of Temporal Mobius
Of When the Days Ended
Off Season
Off World
Offspring

Ogilvie, Tallant and Moon
Ogre Titans
Okal Rel
Okal Rel Saga, The
Okomi
Olaun
Old Growler
Old Star Saga
Oleandre Trilogy
Olga Romanoff

Oliver Nocturne
Olivia Kidney
Olympus Prime
Omar Yussef
Omaran Saga, The
Omega
Omega Point
Omega Sub
Omega Team
Omega Tribe

Omen
Omni Best Science Fiction
Omni Chronicles (2)
Omni Chronicles, The
Omni Odysseys
On Wings
Once and Future King, The
Once Upon
Once Upon A Time
Once Upon a Time Traveler

Once upon a Time...
One Land Saga, The
One Prophecy, The
One Rose, The
One Who Would Be King, The
One Wizard Place
Onyalum, The
Oozren Paths
Op-Center
Open Season

Opening of the World
Opera Mysteries
Operation
Operation Chaos
Operation StarHawks
Ophelia And Abby
Ophir
ORACLE
Oracle
Oracle Prophecies, The

Oracles of Fire
Orange County - Three Californias
Orangefield
Orb Trilogy
Orbit
Orbit SF
Orbits of Clytie, The
Orbitsville
Orcs - First Blood
Order, The

Oregon Files
Organic Future
Orianus Creation, The
Origin
Original Four, The
Orion
Orokon, The
Orphan Train Children
Orphan's Tales, The
Orphans of Chaos

Oscar Wilde
OSI
Osis Trilogy
Osserian Saga
Oswald Bastable
Otava
Other Edens
Other End Of Time, The
Other Half, The
Other Side of the Wall, The

Other Worlds
Otherland
Otherness
Others, The
Others, The
Otherworld Crime Unit (OCU)
Otto and Uncle Tooth
Our Ancestors
Out of Space and Time
Out of the Ashes

Out of This World
Out of This World
Out of This World
Out of This World
Out There?
Outcast
Outcast Season
Outcasts, The
Outer Limits
Outernet

Outlander
Outlanders
Outlanders - Heart of the World
Outlanders - Lost Earth Saga
Outlanders - The Dragon Kings
Outlanders - The Imperator Wars
Outlaws of Moonhadow Marsh
Outremer
Outrider
Outrunner Odyssey

Oval Amulet
Overload
Overworld
Owen Archer
Owl
Oxrun
Oxrun - Oxrun Trilogy
Oxygen
Oz
Oz Blackstone Mystery
Oz Chronicles
Oz Prequels
Ozark

A note about our database of SF and fantasy authors