Maioli style. Decoration formed of shields or medallions with scroll work running through them.
Marbled calf. Calfskin treated with acid so that it resembles marble.
Marbling. Process of staining the paper or the edges of books with colors irregularly combined, similar to the irregular colorings and markings in marble.
Marker. Piece of ribbon fastened to the headband and used as a book mark. Also called Register.
Marking-up. Marking the position of the cords on the back.
Millboard. See Boards.
Millboard machine. Used for cutting and squaring boards.
Mitred. Term indicating that lines in finishing meeting each other at right angles, continue but do not overrun each other.
Mosaic binding. A leather binding ornamented by designs made of inlaid pieces of leather or other material of different colors.
Mottled calf. Light brown calf treated with acid to give it a mottled appearance.