List of books in alphabetical order by title:

a number - A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z

Oa-Ol

• Oahspe - John Ballou Newbrough (1882)
• Oblomov - Ivan Goncharov (1858)
• Obras Completas - Jorge Luis Borges (1989)
• L'Obsédante obèse et autres agressions - Gilles Archambault (1987)
• Oceanic and Other Stories - Greg Egan
• The October Country - Ray Bradbury (1955)
• October Surprise - Gary Sick (1980)
• The Odessa File - Frederick Forsyth (1972)
• Odyssey - Homer
• Oedipus the King - Sophocles
• Of Mice and Men - John Steinbeck
• An Old Captivity - Nevil Shute
• An Old Chair - Alamgir Hashmi (1979)
• The Old Curiosity Shop - Charles Dickens (1841)
• The Old Devils - Kingsley Amis (1986)
• The Old Man and the Sea - Ernest Hemingway (1952)
• The Old Men at the Zoo - Angus Wilson (1961)
• Old Possum's Book of Practical Cats - T. S. Eliot
• Oliver Twist - Charles Dickens (1839)
• Oliver's Story - Erich Segal (1977)

Om-Op

• Les Ombres Errantes - Pascal Quignard (2002)
• Omertà - Mario Puzo (2000)
• On Her Majesty's Secret Service - Ian Fleming (1963)
• On Liberty - John Stuart Mill
• On the Beach - Nevil Shute (1957)
• On the Nature of Things - Lucretius
• On the Road - Jack Kerouac (1957)
• On Wings of Eagles - Ken Follett (1983)
• The Once and Future King - T.H. White (1958)
• Once Is Not Enough - Jacqueline Susann (1973)
• One Day in the Life of Ivan Denisovich - Alexander Solzhenitsyn
• One Door Away from Heaven - Dean R. Koontz (2002)
• One Flew Over the Cuckoo's Nest - Ken Kesey (1962)
• One Hundred Years of Solitude - Gabriel García Márquez (1967)
• One of Ours - Willa Cather (1922)
• Onion John - Joseph Krumgold , (1960 Newbery Medal)
• Only the Ball was White - Robert Peterson (1970)
• Opus 100 (1969)

Or-Ot

• The Oracle Encyclopædia (1895)
• Orange Book (TCSEC - Trusted Computer System Evaluation Criteria), computer security standards
• Ordeal of the Union series - Allan Nevins 1947-1971
• Oregon Geographic Names - Lewis L. McArthur (2003)
• The Oriental Christ - Protap Chunder Mozoomdar (1883)
• The Origin of Species (On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life.) - Charles Darwin (1859)
• - James Edward (1982)
• Orphans of the Sky - Robert A. Heinlein (1963)
• Oryx and Crake - Margaret Atwood (2003)
• Oscar and Lucinda - Peter Carey (1988) - winner of the Booker Prize
• The Osterman Weekend - Robert Ludlum (1972)
• The Other Side of Midnight - Sidney Sheldon (1974)
• The Other - Thomas Tyron (1971)
• El otoño del patriarca (The Autumn of the Patriarch) - Gabriel García Márquez (1975)

Ou-Oz

• Our Game - John le Carré (1995)
• Our Lady of Chernobyl - Greg Egan
• Our Man in Havana - Graham Greene (1958)
• Our World in Space - Isaac Asimov (1974)
• Out of the Dust - Keran Hess , (1998 Newbery Medal)
• Out of the Silent Planet - C. S. Lewis
• The Outline of History - H. G. Wells (1919)
• The Outsider (or The Stranger) - Albert Camus (1942)
• The Outsider - Howard Fast (1984)
• Overload - Arthur Hailey (1979)
• Oxford Book of Twentieth Century English Verse - edited by Philip Larkin (1973)
• Oxford Classical Dictionary (1949)
• The Oxford Companion to Food (1999) - Alan Davidson
• Oxford English Dictionary