Book collecting is the collecting of books, including seeking, locating, acquiring, organizing, cataloging, displaying, storing, and maintaining whatever books are of interest to a given collector. The love of books is bibliophilia, and someone who loves to read, admire, and a person who collects books is often called a bibliophile but can also be known as an bibliolater, meaning being overly devoted to books, or a bookman which is another term for a person who has a love of books.
Some inexpensive collectible books: these are, left to right, by Tyndall, Collingwood, H. M. Field, Bryce, Woolf, and Asimov.