“ Blank leaves were left for the filling in of engraved portraits for extra illustration of the text, and it became a favourite pursuit to discover such illustrations and insert them in a Granger, so that “grangerizing” became a term for such an extra-illustration of any work, especially with cuts taken from other books. The immediate result of the appearance of Granger’s own work was the rise in value of books containing portraits, which were cut out and inserted in collector’s copies. ”