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	Mainstream authors, surname starts with O		Books	Genres
	Joyce Carol Oates	New Books	132	h, m, r, c
	Elizabeth Birkelund Oberbeck		1	r, c
	Edna O'Brien	New Books	36	f, c
	Kate O'Brien		16	r, c
	Ronan O'Brien	New Books	1	c
	Tim O'Brien		10	c
	Brendan O'Carroll		7	c
	Ross O'Carroll-Kelly	New Books	10	c
	Philip Ó Ceallaigh		1	c
	Gina Ochsner		2	c
	Edwin O'Connor		8	c
	Joseph O'Connor	New Books	15	c
	Scott O'Dell	New Books	33	c
	Brian O'Doherty		5	c
	Cristina Odone	New Books	4	c
	Nuala O'Faolain		4	c
	John O'Farrell		7	r, c
	Sheila O'Flanagan	New Books	19	r, c
	Catherine O'Flynn	New Books	1	m, c
	Yoko Ogawa	New Books	4	c
	Ian Ogilvy	New Books	8	f, c
	Andrew O'Hagan	New Books	9	c
	John O'Hara		44	c
	Ben Okri		16	c
	Lance Olsen		17	h, c
	Joseph Olshan	New Books	8	c
	Toby Olson		19	c
	Karen Olsson		1	c
	Linda Olsson	New Books	2	c
	Kole Omotoso		10	c
	Stewart O'Nan	New Books	15	h, t, c
	Michael Ondaatje	New Books	27	c
	Heather O'Neill		2	c
	Joan O'Neill		15	r, c
	Joseph O'Neill		5	s, c
	Juan Carlos Onetti		10	c
	Lewis Orde		15	t, c
	Sam O'Reilly		2	c
	Kate O'Riordan		6	r, c
	Peter Orner		3	c
	Julie Orringer	New Books	2	c
	Joe Orton		16	c
	George Orwell		56	s, h, c
	Betsey Osborne		3	r, c
	Klas Östergren	New Books	2	c
	Kim Ostrow		30	c
	Vincent O'Sullivan		14	h, c
	Caroline Oulton		2	c
	Agnes Owens	New Books	8	c
	Helen Oyeyemi	New Books	3	c
	Amos Oz	New Books	26	c
	Emine Sevgi Özdamar		3	c
	Ruth Ozeki		3	c
	Cynthia Ozick		20	c

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