What is an Endband? – Meaning and Examples
The Endband sounds like it would be a great name for a punk group but it is actually a term used in book binding and printing. The Endband is the small, colored ribbon that is glued to the top and bottom edge of the spine of the book, the outer covering that covers the binding in hardcover books, or woven through the pages of the book.
The Endband serves to cover the gap between the spine and the book block and to beautify and reinforce the binding. Endbands are usually woven from catgut, vellum or cord. In the past they were handwoven but this is now only common in handmade luxury books; modern endbands are machine made and attached to the binding by high speed presses.
The woven endband in use today has been around since the beginning of the 18th century. Before the 16th century, the bookbinder used a piece of leather or parchment for the endband, which he wrapped around with the stitching thread and formed a small ornate loop by means of the stitching needle. The original purpose was derived from the stitching technique used since the Middle Ages on real frets. In this context, there was a single (not double) waistband at the head and foot of the book, which also served as a reversal point of the thread in the course of stitching and whose ends were attached to the wooden covers like the other stitching frets. With the changes in binding technology since the Renaissance, which gradually replaced wooden book covers with cardboard, the functional endband bond changed into aesthetically based tangible endbands used today.
Adapted and translated from https://en.wikipedia.org/wiki/Endband