An out-of-print (OOP) or out-of-commerce item or work is something that is no longer being published. The term applies to all types of printed matter, visual media, sound recordings, and video recordings. An out-of-print book is a book that is no longer being published. The term can apply to specific editions of more popular works, which may then go in and out of print repeatedly, or to the sole printed edition of a work, which is not picked up again by any future publishers for reprint. Most works that have ever been published are out of print at any given time, while certain highly popular books, such as the Bible, are always "in print". Less popular out-of-print books are often rare and may be difficult to acquire unless scanned or electronic copies of the books are available. With the advent of book scanning, and print-on-demand technology, fewer and fewer works are now considered truly out of print. A publisher creates a print run of a fixed number of copies of a new book. Print runs for most modern books number in the thousands. These books can be ordered in bulk by booksellers, and when all the bookseller's copies are sold, the bookseller has the option to order additional copies. If the initial print run sells out and demand still exists, the publisher will have more copies printed, if possible. When the book is no longer selling either at a rate fast enough to pay for the inventory or stock costs, or to justify another print run, the publisher will cease to print additional copies, and may remainder or pulp the remaining unsold copies. When all of the books in a print run have been sold to booksellers, the book is said to be "out of print", meaning that a bookseller cannot get any further copies from the publisher. If a book sells out unexpectedly quickly, it may be considered out of print briefly when its initial print run is exhausted, but is usually soon reprinted. Publishers may choose to list a book as "out of stock indefinitely", instead of declaring it out of print, as the publisher may have to give up copyright when declaring it out of print. Publishers will often let a book go out of stock for long periods, then reprint the book, usually with a new cover and formatting, to catch the presumably built up demand