Books: co co education (sorted alphabetically)
- Daughter of Eve Honoré de Balzac
- Daughter of the Commandant Aleksandr Sergeevich Pushkin
- Daughter of the Land Gene Stratton-Porter
- David Crockett: His Life and Adventures John S. C. Abbott
- day at Happy Hollow School Lettie Cook Van Derveer
- Day Before Yesterday Richard Middleton
- Deaf and Dumb! Elizabeth Sandham
- Debating for boys William Horton Foster
- Decadence, and Other Essays on the Culture of Ideas Remy de Gourmont
- Decimal Classification. Tables générales (French) International Institute of Bibliography
- Defence of Poesie and Poems Philip Sidney
- De l'amour (French) Charles Baudelaire
- De La Salle Fifth Reader Christian Brothers
- Del libro impreso al libro digital (Spanish) Marie Lebert
- Delsarte System of Oratory Delaumosne
- Democracy and Education: An Introduction to the Philosophy of Education John Dewey
- De Orbe Novo, Volume 1 (of 2) Pietro Martire d' Anghiera
- Des bonnes moeurs et honnestes contenances que doit garder un jeune homme, tant à table qu'ailleurs, avec autres notables enseignemens (French) active 15th century Joannes Sulpitius Verulanus
- Desired Woman Will N. Harben
- Dew Drops, Vol. 37, No. 08, February 22, 1914 Various
- Dew Drops, Vol. 37, No. 10, March 8, 1914 Various
- Dew Drops, Vol. 37, No. 18, May 3, 1914 Various
- Diary of a Freshman Charles Macomb Flandrau
- Dictionary of the Chinook Jargon, or, Trade Language of Oregon George Gibbs
- Diggers in the Earth Eva March Tappan