| Capital Books: Publisher of titles on career and personal development as well as general subjects. |
| Cardiff Academic Press: Publishers of academic books, specialising in religious studies, biography, and literature. |
| CavanKerry Press: New and reprints of poetry and prose. |
| Centerpoint Press: Books on a variety of topics. |
| CenturyOne Bookstore: Archaeological and biblical games, multimedia, software, and books on biblical studies, history and travel. |
| Chapters Indigo: Books, music, videos, and software. |
| Chase Publishing: Cookbooks and short stories collections. |
| Chrysalis Books: Books, links. Order online. |
| Clear Light Books: Books to enhance the human spirit. |
| Collins Booksellers: Australian owned bookstore offers a "try before you buy" option on selected books. |
| Congalton, Alexander: A California couple that publishes books on grieving for animals and other animal-welfare and pet-owner issues. |
| Controversial Bookstore: Subjects include bodywork, healing, metaphysics, music and psychology. |
| Cornwall Discount Books: Sells new books at discounts. |
| Creekside Press: Books, articles, news, and products related to the writing, theology, and environmental pursuits of Dick Austin. |
| Cumbria Books: Offers new and out of print books from the UK |
| The Crossing Press: Non-fiction books, including spirituality, new age, alternative health and healing, cooking, and pets. |
Classical
