"Print on demand" technologies, which help it become doable to print as several as just one book in a time, have created self-publishing (and Vainness publishing) a lot easier and more affordable, and has authorized publishers to keep small-selling books in print somewhat than declaring them away from print. https://directorypixels.com/listings13418029/a-simple-key-for-barnes-and-noble-online-book-search-unveiled