Show: all s science fiction f fantasy h horror m mystery t thriller r romance w western c mainstream | | Mainstream authors, surname starts with O | | Books | Genres |
|---|
| J A O'Brien | | 3 | c |
| J Adams Oaks | New Books | 1 | c |
| Joyce Carol Oates | New Books | 137 | h, m, r, c |
| Elizabeth Birkelund Oberbeck | | 1 | r, c |
| Tea Obreht | New Books | 1 | c |
| Edna O'Brien | New Books | 36 | f, c |
| Kate O'Brien | | 16 | r, c |
| Meghan O'Brien | New Books | 4 | s, f, r, c |
| Michael D O'Brien | | 9 | t, c |
| Sean O'Brien | New Books | 19 | c |
| Tim O'Brien | | 10 | c |
| Brendan O'Carroll | | 7 | c |
| | | | |
| Ross O'Carroll-Kelly | New Books | 12 | c |
| Gina Ochsner | New Books | 3 | c |
| Jenny O'Connell | | 4 | r, c |
| Anne-Marie O'Connor | New Books | 3 | c |
| Joseph O'Connor | New Books | 18 | c |
| Kaitlyn O'Connor | | 20 | f, r, c |
| Grace Octavia | New Books | 3 | c |
| Scott O'Dell | New Books | 34 | c |
| Cristina Odone | New Books | 4 | c |
| Nuala O'Faolain | | 4 | c |
| John O'Farrell | New Books | 10 | r, c |
| Jody Offen | | 2 | r, c |
| | | | |
| Sheila O'Flanagan | New Books | 20 | r, c |
| Catherine O'Flynn | New Books | 3 | m, c |
| Yôko Ogawa | New Books | 5 | c |
| Ian Ogilvy | New Books | 10 | f, c |
| Andrew O'Hagan | | 9 | c |
| John O'Hara | | 44 | c |
| Mary O'Hara | | 10 | m, r, c |
| Kei Ohishi | | 1 | h, c |
| Willa Okati | | 15 | s, f, h, t, r, c |
| Laurel Oke Logan | | 5 | r, w, c |
| Chioma Okereke | New Books | 1 | c |
| Ben Okri | New Books | 17 | c |
| | | | |
| Sofi Oksanen | New Books | 1 | c |
| Olaf Olafsson | | 4 | c |
| Greg Olear | New Books | 1 | c |
| Mrs Oliphant | | 37 | h, c |
| Lauren Oliver | New Books | 1 | c |
| Robert Olmstead | New Books | 7 | c |
| Ed O'Loughlin | New Books | 1 | c |
| Mark Andrew Olsen | | 9 | f, m, t, r, c |
| Linda Olsson | | 2 | c |
| C J Omololu | New Books | 1 | c |
| Stewart O'Nan | New Books | 16 | h, t, c |
| Michael Ondaatje | | 27 | c |
| | | | |
| Laura O'Neil | | 8 | m, c |
| Geraldine O'Neill | | 7 | r, c |
| Heather O'Neill | | 2 | c |
| Joan O'Neill | | 15 | r, c |
| Joseph O'Neill | | 5 | s, c |
| Tony O'Neill | New Books | 8 | c |
| Yang-May Ooi | New Books | 3 | m, t, c |
| Jane Orcutt | New Books | 13 | m, r, c |
| Lewis Orde | | 15 | t, c |
| Denise Gosliner Orenstein | New Books | 3 | c |
| Kate O'Riordan | | 6 | r, c |
| Julie Orringer | New Books | 2 | c |
| | | | |
| Joe Orton | | 16 | c |
| George Orwell | New Books | 60 | s, h, c |
| Frances Osborne | New Books | 3 | c |
| Sharon Osbourne | New Books | 4 | c |
| Klas Östergren | New Books | 3 | c |
| Mary O'Sullivan | | 4 | r, c |
| Vincent O'Sullivan | New Books | 14 | h, c |
| James P Othmer | New Books | 3 | c |
| Caroline Oulton | New Books | 2 | c |
| Cynthia Owen | New Books | 1 | c |
| Helen Oyeyemi | New Books | 4 | c |
| Amos Oz | New Books | 28 | c |
| Cynthia Ozick | | 20 | c |
| Kachi A Ozumba | New Books | 1 | c |
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