All authors, surname starts with O		Books
	Daniel O'Malley		4
	Eden O'Neill		13
*	Joyce Carol Oates		202
*	Patrick O'Brian		44
*	Anne O'Brien		34
*	Jenny O'Brien		18
	Kevin O'Brien		23
	Weston Ochse		33
*	Carol O'Connell		14
**	Carlene O'Connor		11
**	Karen Odden		4
*	Tee O'Fallon		9
*	Maggie O'Farrell		11
**	Sheila O'Flanagan		39
	Kate O'Hearn		22
*	Kristina Ohlsson		10
***	Janette Oke		107
	Megan E O'Keefe		9
*	Nnedi Okorafor		23
*	Nick Oldham		34
*	Beth O'Leary		4
	Caitlyn O'Leary		43
	Susanne O'Leary		44
*	Lauren Oliver		26
*	Lisa Oliver		84
	SM Olivier		7
*	Ollie Ollerton		4
**	Gregg Olsen		60
*	Melissa F Olson		20
*	Tricia O'Malley		39
	Mike Omer		9
*	Barbara O'Neal		14
	Kenneth Oppel		41
	E Phillips Oppenheim		152
	Bill O'Reilly		35
	Diana Orgain		35
*	Emily Organ		31
	George Orwell		67
	K E Osborn		64
*	Bella Osborne		27
*	Erin Osborne		58
**	Mary Pope Osborne		108
	Kirsten Osbourne		219
	Alice Oseman		12
	Perri O'Shaughnessy		15
	Mat Osman		2
****	Richard Osman		3
	Aaron Oster		34
****	James Oswald		17
	Abigail Owen		30
	Margaret Owen		4
	C M Owens		50
*	Delia Owens		1
*	Robin D Owens		36
	Sandra Owens		26

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