HEAD= The top edge of the book.
TAIL = The bottom edge of the book. Also called foot.
BACKBONE = The edge of the book that is bound.
FORE EDGE = The edges of the pages at the front of the book (opposite the spine)
Section (Brit), Signature (Ame)= Folded sheets of paper attached to the first and last section of a book.
Kettlestitch = From the German word "ketteln", meaning to link or make a chain. Sewn at each end of the sections to hold then together.
Sewing support = Any tape, cord, or other material that supports the sewing book.
Spine = The part of the cover that protect the backbone of the book.
Join = The hinge point on the book where the cover board meets the spine.
