Bookbinding and the Conservation of Books: A Dictionary of Descriptive Terminology by Matt T. Roberts and Don Etherington.
CoOL: Conservation Online is an extensive site with a great deal of information related to the conservation of books, paper, photographs, archives, artefacts and other material.
Northeast Document Conservation Center. An authoritative online resource for information about the preservation of paper-based materials. Includes information for disaster planning and recovery for cultural collections.