In some cases, printers are identified on title pages only by initials; yet bibliographers can employ title-page colophons and other clues to make identifications.
en.wikipedia.org It is the preliminary phase of bibliographic description and provides the vocabulary, principles and techniques of analysis that descriptive bibliographers apply and on which they base their descriptive practice.
en.wikipedia.org He was a bookseller, bibliographer, publicist, polemicist, historian, memoirist, author, editor, and publisher, all rolled into one.
en.wikipedia.org A bibliographer, in the technical meaning of the word, is anyone who writes about books.
en.wikipedia.org A person who limits such efforts to a specific field or discipline is a subject bibliographer.
en.wikipedia.org