Books about Poetry (sorted alphabetically)
- Oeuvres poétiques Tome 2 (French) de Pisan Christine
- Old Arm-Chair Eliza Cook
- Old Hanging Fork and Other Poems George W. Doneghy
- One Day & Another: A Lyrical Eclogue Madison Julius Cawein
- On Strike Till 3 Grant Balfour
- Oom Gert Vertel en Ander Gedigte (Afrikaans) C. Louis Leipoldt
- Open Water Arthur Stringer
- Opera nova amorosa, vol. 2 (Italian) Napolitano Notturno
- Opera nova amorosa, vol. 3 (Italian) Napolitano Notturno
- Our Profession and Other Poems Jared Barhite
- Outlook Odes T. W. H. Crosland
- Out of the North Howard V. Sutherland
- Oxford Lectures on Poetry A. C. Bradley
- Painuva päivä; Elämän koreus; Leirivalkeat; Ajatar; Syreenien kukkiessa (Finnish) Eino Leino
- Pan and Æolus: Poems Charles Hamilton Musgrove
- Papers from Overlook-House Frederic W. Beasley
- Parapilla, poëme en cinq chants (French) Charles Bordes
- Passing of the Storm, and Other Poems Alfred Castner King
- Patnubay nang Cabataan ó Talinhagang Buhay ni Eliseo at ni Hortensio (Tagalog) Joaquín Tuason
- Patriotic Poems of Walt Whitman Walt Whitman
- Pepper & Salt; or, Seasoning for Young Folk Howard Pyle
- Perlen der heiligen Vorzeit (German) János László Pyrker
- Perpetual Light : a memorial William Rose Benét
- Peter Bell the Third Percy Bysshe Shelley
- Philosophies Sir Ronald Ross