Saddle Stitched Binding: An often used binding system using staples on the spine. The name derives from when it is open, draped over a saddle to apply the stitches.
Side-Stitched Binding: Staple stitches on the side of loose pages is side stitching. Here the pages are in multiples of two – each page having a front and back.
Perfect Binding: A saddle stitch may become prohibitive, so to allow for more pages a square spine is used.
Spiral Binding: Circular metal or plastic spirals are used to hold the pages with mutiple holes down a margin.