main printed feature: frontispiece

Sometimes books feature an image that precedes (often by facing) the title page. These frontispieces differ from illustrated title pages, which include both image and text providing the book’s title.

Ames, Typographical antiquities, 1749 (frontis.)

Copies of early English printer's devices make up the frontispiece to Ames's history of English printing.

Sacrobosco, Noviciis adolescentibus, 1485 ([1]1v)

This woodcut---one of the standard ones accompanying Sacrobosco's astronomical textbook---is in this edition facing the beginning of the text and the incipit.