Saddle stitch booklet refers to the booklet with two or three staples applied to the spine of the booklet. Suitable for booklets with less than 100 pages.
Bound by a set of rings in the spine. Usually seen in notebooks, log books, and catalogues. Different paper stocks can be used on different pages. Text pages can be torn off easily if needed.
Perfect bind booklet is suitable for books with lots of pages.
Case bind booklet is suitable for books with lots of pages with a grand appearance.