A.  Awl or Paper Punch Tool: Used to punch holes in the signatures (pages of the book).

B.  Bone Folder:  Used to fold or crease paper and smooth-out air bubbles.

C.  Buchram Binding:  Cloth material used to bind the bookboards to the spine.

D.  Bookboard:  The hard cover on the book.

E.  Book Block:  The inner part of the book, consisting of the signature-set, headbands, endleaves, and mull.

F.  Book Weights:  Bricks or any heavy objects covered with fabric such as a white socks.

G.  Case:  The outer protective cover around the book, made of the bookboards, fabric, spine, and binding.

H.  Cover Fabric:  The cloth material that covers the bookboards.

I.  Endleaves:  The page at the beginning of the book and the end of the book.

J.  Fold:  The folded edge of a folio or signature (pages of the book).

K.  Folio:  A folded sheet of paper.  It forms two leaves or four pages in a book.

L.  Headband:  A decorative strip of cloth glued to the head and tail of the spine.

M.  Mull:  The mesh material that is glued to the signature-set.

N.  Sewing Guide:  The measure used to line up a signature for marking.

O.  Signature:  Folios (usually three)  make up a signature.

P.  Signature-Set:  A number of signatures make up the signature-set, which in turn makes up most of the pages in the book.

Q.  Spine:  The backbone of the book.  It is glued to the binding, which is glued to the bookboards.  The pages of the book should not be wider then the spine.

R.  Wax Paper:  Used to keep glue from sticking to pages.