Completist

A completist is a book collector who seeks all collectible editions of a particular title, subject, author, or other focus of their collection. Rather than just seeking the first edition of a book or work, a completist may seek all first appearances, including foreign publications, and works and objects ancillary to the book. A completist that collects a particular author seeks to assemble and exhaustive collection of all that author's works, in all states. A completist may also, for example, seek to obtain the manuscript editions, and even the typewriter that was used by the author, as well as the books they produced on it.