Title holders are people or entities that have a certain title or position. Spines, owners, champs, bookends, NOBLES, and marquees are all terms used to describe title holders. Spines refer to the spine of a book, which is the binding that holds the pages together. Owners refer to those who own something, such as a business or property. Champs are champions, or those who have won a competition or title. Bookends are two objects placed at either end of a row of books to keep them in place. NOBLES are members of the nobility, or those with a high social rank. Marquees are large signs or structures used to advertise a business or event.