Books: co co education (sorted alphabetically)
- Condition and Tendencies of Technical Education in Germany Arthur Henry Chamberlain
- Confession: A Novel Maksim Gorky
- Confessions of an Etonian I. E. M.
- Confessions of a Young Man George Moore
- Confessions of Jean Jacques Rousseau — Complete Jean-Jacques Rousseau
- Confidences: Talks With a Young Girl Concerning Herself E. B. Lowry
- Conflict David Graham Phillips
- Conic Sections: Treated Geometrically W. H. Besant
- Coniston — Complete Winston Churchill
- Connecticut Yankee in King Arthur's Court, Part 3. Mark Twain
- Consecrated Womanhood Frederic Rowland Marvin
- Conservation of Races W. E. B. Du Bois
- Considerations on Religion and Public Education Hannah More
- Constitutional Development of Japan 1853-1881 T. Iyenaga
- Construction Work for Rural and Elementary Schools Virginia McGaw
- Consumers' Cooperative Societies in New York State Consumers' League of New York City
- consumer viewpoint : covering vital phases of manufacturing and selling household devices Mildred Maddocks Bentley
- Contes à Jeannot (French) Jules Girardin
- Contes et historiettes à l'usage des jeunes enfants (French) Zulma Carraud
- Contes Français (French)
- Contes littéraires du bibliophile Jacob à ses petits-enfants (French) P. L. Jacob
- Copper Work: A Text Book for Teachers and Students in the Manual Arts Augustus F. Rose
- Copyright Law of the United States of America United States and Library of Congress. Copyright Office
- Corazón : (diario de un niño) (Spanish) Edmondo De Amicis
- Cornelli Johanna Spyri