backboneA book's backstrap, backstrip or spine.
bar codeThe common term for Universal Product Code.
bds.Abbreviation for "boards," which see.
belles lettresFine arts literature (fiction, poetry, drama, etc.) as distinguished from scientific/technical writing.
BiblioAn electronic mailing list which is dedicated to news of the used book trade.
bibliomaneA book-nut (or worse ; ).
bibliophileA book lover (or worse ; ).
blurbThe paragraph or so printed on the cover or dust jacket of a book which almost always tells you how important the book is.
boardsThe stiff front and back parts of a hardcover book.
bound galleyAn uncorrected page or galley proof sent out by a publisher before publication for publicity.
bowdlerizationThe practice of censorship by publication of expurgated texts. This practice got its name from English editor Thomas Bowdler (1854-1825) who published altered editions (especially of Shakespeare's works).