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	Mystery authors, surname starts with O		Books	Genres
	Andy Oakes		2	m
	Joyce Carol Oates	New Books	137	h, m, r, c
	Charles O'Brien	New Books	8	m
	Kevin O'Brien	New Books	10	m
	Martin O'Brien	New Books	6	m
	Maureen O'Brien		7	m
	Meg O'Brien		17	m, r
	Maxine O'Callaghan		15	h, m, r
	Thomas O'Callaghan		2	m
	T Lynn Ocean		5	m
	Carol O'Connell	New Books	11	m
	Catherine O'Connell		2	m
	Jack O'Connell	New Books	6	m
	Gemma O'Connor		8	m
	Jane O'Connor		3	h, m
	Patrick O'Connor		21	m, t
	Shannon O'Cork		8	m, r
	Tawni O'Dell	New Books	4	m
	Mel Odom	New Books	122	s, f, h, m, t
	Lillian O'Donnell		35	m
	Clare O'Donohue	New Books	2	m
	Catherine O'Flynn	New Books	3	m, c
	Leslie O'Grady		10	m, r
	Mary O'Hara		10	m, r, c
	Diana O'Hehir		11	m
	Leslie O'Kane		10	m
	Marc Olden		29	f, m
	Jenny Oldfield		172	f, h, m, t, r
	Pamela Oldfield	New Books	105	h, m, r
	Nick Oldham	New Books	14	m
	B J Oliphant		7	m
	Gregg Olsen	New Books	12	m
	Mark Andrew Olsen		9	f, m, t, r, c
	Karen E Olson	New Books	6	m
	Neil Olson		1	m, t
	Sister Carol Anne O'Marie		11	m
	Laura O'Neil		8	m, c
	Gilda O'Neill		21	m, r
	Kyle Onstott		11	m, r
	Yang-May Ooi	New Books	3	m, t, c
	Kenneth Oppel	New Books	23	f, m, t
	E Phillips Oppenheim		150	m, t
	Jane Orcutt	New Books	13	m, r, c
	Baroness Orczy	New Books	53	m, t
	A J Orde		6	m, t
	Bill O'Reilly	New Books	8	m, t
	Margie Orford	New Books	8	m
	Diana Orgain	New Books	2	m
	Alan Orloff	New Books	1	m
	Roger Ormerod		49	m
	David Osborn		10	m, t
	Ben Osborne	New Books	2	m, t
	Denise Osborne		6	m
	Mary Pope Osborne	New Books	114	f, m
	Perri O'Shaughnessy	New Books	15	m
	Helen Macie Osterman	New Books	4	m
	Gail Oust	New Books	2	m
	Charlie Owen	New Books	4	m
	Dean Owen		49	s, h, m, w
	Joanne Owen	New Books	2	m

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