Title page

[2] Particularly in paperback editions it may contain a shorter title than the cover or lack a descriptive subtitle.

Also often included there are the ISBN and a "printer's key", also known as the "number line", which indicates the print run to which the volume belongs.

[2] The Bulla Cruciatae contra Turcos (1463) is the earliest use of a title on the first page.

[5] In the 19th century, Paris green and similar arsenic pigments were often used on front and back covers, top, fore and bottom edges, title pages, book decorations, and in printed or manual colorations of illustrations of books.

Since February 2024, several German libraries started to block public access to their stock of 19th century books to check for the degree of poisoning.