all  science fiction  fantasy  horror  mystery  thriller  romance    

 All authors, surname starts with O BooksGenres
Tim O'RourkeNew Books107f
Joyce Carol OatesNew Books190m,s
Constance O'Banyon48r
Patrick O'Brian42t
Anne O'BrienNew Books31r
Kevin O'BrienNew Books21m,t
Martin O'Brien11m
Weston OchseNew Books29f,h,s,t
Carol O'Connell14m
Carlene O'ConnorNew Books4m
Karen OddenNew Books2m
Scott OdenNew Books7f
Mel OdomNew Books148h,m,s,t
Maggie O'FarrellNew Books12
Sheila O'FlanaganNew Books37f,r
Kate O'HearnNew Books17f
Kristina OhlssonNew Books10m
Janette Oke104r
Molly O'KeefeNew Books44r
Nnedi OkoraforNew Books18f,s
Nick Oldham30m,t
Jenny OliverNew Books14r
Lauren OliverNew Books25f,m,r,s
Gregg OlsenNew Books53m
Karen E Olson12m
Melissa F OlsonNew Books18f
Tricia O'MalleyNew Books22f,m,r
Mike OmerNew Books6m
Michael Ondaatje30
Barbara O'Neal10m,r
Geraldine O'NeillNew Books14r
Tochi OnyebuchiNew Books2f
Kenneth OppelNew Books35h,t
Baroness Orczy50
Bill O'ReillyNew Books31m
Diana Orgain17m
Emily OrganNew Books13m
Kaitlin O'RileyNew Books12f,h,r
George OrwellNew Books67s
Bella OsborneNew Books17r
Lawrence Osborne15m
Maggie Osborne47
Mary Pope OsborneNew Books104
Kirsten OsbourneNew Books154r
Perri O'Shaughnessy15m
Ronnie O'SullivanNew Books3m
J D Oswald5f
James OswaldNew Books11m
Chris Ould6m
Gail OustNew Books12m
Hollie OvertonNew Books3m
Charlie Owen4m
C M OwensNew Books55f,r
Delia OwensNew Books1m
Robin D OwensNew Books35f,h,r

an indication of the popularity of an author on our website,
based on the number of people visiting the author's page.

Please note: This list only shows the most popular authors on our site.