Douglass Cockerell was the first, or one of the first, craftsmen to show that the slight projection of the cords was acceptable not only because it showed that the book was solidly constructed, but because the lumps actually provided a starting point for the decoration of the book.
Grooves in the shape of an inverted V, ending with a hole to take the cord to the inside of the board is the usual method of cutting; however, the tendency today is to cut a groove ending in a rectangular slot at right angles to the groove.
2. The depression along the binding edge of the upper and lower covers of a book. See: JOINT (1) . 3. The space between the board and spine of a book having an open joint. See: FRENCH JOINT . See also: CLOSED JOINT . 4. Cuts made in the spine of a text block in the shape of an inverted V, into which cords are recessed when sewing single leaves. See also: KERF . (83 , 196 , 236 )