A non-book or books that are no books: Biblia abiblias are publications of no human interest or are considered worthless as literature.

"I can read anything which I call a book", wrote Charles Lamb. "There are things in that shape which I cannot allow for such. In this catalogue of books which are not books—biblia a-biblia—I reckon Court (Royal) Calendars, Directories, Pocket Books, Draught Boards, bound and lettered on the back, Scientific Treatises, Almanacs, Statutes at Large, the works of Hume, Gibbon, Robertson, Beattie, Soame Jenyns, and generally, all those volumes which, 'no gentleman's library should be without.' "