Book tape is a type of adhesive tape used to reinforce the spines and edges of books, providing extra durability to their bindings. However, there are several synonyms for book tape that can be used interchangeably to describe this type of tape. These include binding tape, library tape, repair tape, and spine tape. All of these terms indicate tape specifically designed for use on books, though they may vary slightly in terms of composition or thickness. Regardless of the term used, these tapes serve the same purpose and are a useful tool for anyone looking to protect and preserve their books.