Binding

A good book is bound by either:

Saddle stitched -wiring it through the middle with staples.

Perfect Bound - a way of adhesive binding multi-sections.  Individual sections are collected together and the spine is roughed up with a type of machine saw to help it absorb the hot glue. Glue is then applied to the spine and a cover pulled on before the product is trimmed to size.

Pur Binding - same process as perfect binding, but use a synthetic adhesive (Polyurethane React) rather than conventional glue.  Offers greater flexibility and longevity of the finished product.

Wire O Binding - a continuous double series of wire loops run through punched slots along the binding side of a booklet