Books: co re re co co co co co co education (sorted alphabetically)
- Compilation of the Messages and Papers of the Presidents. Volume 9, part 1: Benjamin Harrison Benjamin Harrison
- Compilation on Bahá'í Education Universal House of Justice
- Complete Classified List of Books, Pamphlets, Etc., Published Exclusively by The Open Court Publishing Co. Open Court Publishing Company
- Complete Essays of Charles Dudley Warner Charles Dudley Warner
- Complete Grammar of Esperanto (Esperanto) Ivy Kellerman Reed
- Complete Poems of Sir Thomas Moore Thomas Moore
- Complete Project Gutenberg Collection of Memoirs of Napoleon Various
- Complete Writings of Charles Dudley Warner — Volume 4 Charles Dudley Warner
- Condensed guide for the Stanford revision of the Binet-Simon intelligence tests Lewis M. Terman
- Confessions of a Young Man George Moore
- Confessions of Jean Jacques Rousseau — Complete Jean-Jacques Rousseau
- Conflict David Graham Phillips
- 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
- 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
- Copyright Law of the United States of America United States and Library of Congress. Copyright Office