C. Dickens: Fine, rare and collectible books, maps, historical documents, autographs and manuscripts.
C. North Books: Specializing in Western Americana, Native America, biography, science fiction, and art.
Calico Tales: Used, out-of-print and rare books. Categories include science fiction, fantasy, horror, romance and art history. Off-line search available.
Camberwell Books & Collectibles: General stock of books arranged in a wide selection of subjects; accepts want lists.
Cambridge Book and Print Gallery: Specialises in nineteenth and twentieth century works on paper: modern original prints, fine drawings and watercolours, as well as rare books and hard-to-find exhibition catalogues.
Camden Books: Antiquarian, rare and scholarly books in architecture, economics, philosophy, physics and mathematics, and Byzantine studies and history of art. Based in Bath, UK.
Canterbury Books: Offers secondhand and out of print books by mail in all categories, with an emphasis on Canadian content.
Capricorn Books: Specializing in rare and used books; a general stock with larger catalogues being Military History, Science Fiction/Fantasy, Children's, Art, Antiques, and History.
Cardinal Books: Used books, including collectibles and other hard to find titles.
Carmichael Alonso Books: Specialist in 20th century Spanish literature, women's books, art, and music.
Carol's Books: Wide variety of good value secondhand books through the post.
Carol's One Stop Book Shop: Used hardback and paperback books, mostly fiction, listed in categories.
Carolyn's Cookbooks: Sells used cooking and craft books.
Carpe Libris: Antiquarian, rare, and other interesting books, including private press, letterpress, and ephemera.
Cason Books: Sale of used and out-of-print books. Specializing in Georgia regional and decorative arts.
Cat's Cradle Books: An eclectic mix of used, out of print, and rare books. Based in North Carolina.
Cat's Cradle Booksellers: Used, rare and collectible fiction and children's classics, plus biographies, science and law. Based in Illinois.
Caterwaul Books: Used and rare bookstore. Search, request a book search, or order online.
Cellar Stories Bookstore: Used, rare, and antiquarian Books: search or browse.
Century Books: Rare and out-of-print books as well as information and resources on books and book collecting.
Chapel Hill Rare Books: Specialities include Americana, 19th and 20th century first editions, and rare books in a variety of subjects.
Charles Agvent: Online inventory of books with major collections.
Charles B. Wood III, Antiquarian Booksellers: Includes architecture, landscape architecture and garden history, art conservation, book arts and printing history.
Charles Canfield Brown Fine Books: Includes unusual books in many categories and scholarly, out-of-print books.
Charles Mckee Books: Specializing in science-fiction, horror, mystery, cartoon, Canadiana, and fishing.
Chaucer Bookshop: Specialising in first editions, children's, illustrated and antiquarian books of science, and medicine. Based in Canterbury, UK.
Chozen Books: First editions, used, out-of-print, and vintage novels. Offers book search services and a mailing list.
Chris Hartmann, Bookseller: Sells out-of-print and scarce, primarily non-fiction, books by mail order only.
Christine's Book Cabin: Out of print, rare and used books including first editions, collectable books, and comics.
Christison Rare Books: Antiquarian and out-of-print books, especially those relating to or emanating from Africa.
Cliperdown Books: Scarce and out-of-print books on early Mountaineering and Angling, as well as Vintage Detective and Victorian Boys Books.
Clover Hill Books: Specializes in 20th century British and American literature, poetry, literary criticism, and biography about 20th century writers.
CnD Previously Loved Books: Specializing in romance, mystery, science fiction and contemporary books. Site includes drawings, author links and pseudonyms.
Cofion: Second Hand Books and Edwardian postcards in Tenby, Pembrokshire, UK; offers an approval mail-order facility.
Collect Books: First editions, including fiction, non fiction, annuals and paperbacks.
Commonwealth Books: Emphasis on the arts, architecture, history, literature, and religion.
Concharbooks: Used books in over fifty categories, from first-edition factual books to all types of fiction. A store with a Celtic flavour, including second-hand CDs, videos and online games.
Continental Books: Used and out-of-print books. Search or browse categories.
Coup de Foudre: Offers rare books in science, medicine, wine, and mountaineering, as well as tribal art, maps, and antiquities.
Cozy Corner Books: Used, rare, and out of print books with a searchable database including both hardbacks and paperbacks plus online ordering.
Crabtree's Collection: Sells nature, juvenile, history, and a general selection of old and out-of-print books. Searchable inventory.
Cranberry Book Barn: General stock of new, used, out-of-print and rare books.
Crecy Books: Subjects include mystery, action, adventure, science fiction, westerns. Based in Georgia.
Cromwell Books: Used and rare books in most subjects.
Crowes' Nest Books: Searchable database of used and out-of-print books in many categories.
Curio Corner Books: Collectible, rare, and out-of-print, books, including children's, science fiction, Americana, and biographies.
Curious Book Shop: Science fiction, mystery, children's books, Michigan history, sports memorabilia, and old magazines, including comic books and pulps. Includes searchable online inventory.
The Castle Bookroom: Hard to find rare books on all subjects.
The Colophon Bookshop: Specialists in antiquarian and in-print books about books and bibliography, literary first editions, first editions of mystery and detective fiction.