All authors, surname starts with O		Books
	Daniel O'Malley		4
	Eden O'Neill		13
	Colleen Oakley		5
	Joyce Carol Oates		200
	Patrick O'Brian		44
	Anne O'Brien		34
	Jenny O'Brien		18
	Kevin O'Brien		23
	Carol O'Connell		14
	Carlene O'Connor		11
	Karen Odden		4
	Scott Oden		8
	Mel Odom		159
	Tee O'Fallon		9
	Maggie O'Farrell		11
	Chris Offutt		8
	Sheila O'Flanagan		38
	Max O'Hara		3
	Kate O'Hearn		21
	Kristina Ohlsson		10
	Janette Oke		106
	Megan E O'Keefe		9
	Nnedi Okorafor		23
	Nick Oldham		34
	Beth O'Leary		4
	Caitlyn O'Leary		42
	Susanne O'Leary		44
	Lauren Oliver		26
	Lisa Oliver		81
	Gregg Olsen		60
	Melissa F Olson		20
	Tricia O'Malley		38
	Mike Omer		9
	Barbara O'Neal		13
	Kenneth Oppel		40
	E Phillips Oppenheim		151
	Baroness Orczy		50
	Bill O'Reilly		35
	Diana Orgain		33
	Emily Organ		31
	George Orwell		67
	Alexey Osadchuk		13
	K E Osborn		61
	Bella Osborne		26
	Erin Osborne		56
	Mary Pope Osborne		108
	Kirsten Osbourne		217
	Alice Oseman		11
	Perri O'Shaughnessy		15
	Mat Osman		2
	Richard Osman		3
	Aaron Oster		31
	James Oswald		17
	Abigail Owen		31
	C M Owens		49
	Delia Owens		1
	Robin D Owens		36
	Ruth Ozeki		7

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