This document discusses different types of stitches used in garment construction. It begins by defining what a stitch is as loops of thread bound together through interlacing, interlooping, or intralooping. It then provides terminology for different types of bindings: interlacing, interlooping, and intralooping. The document proceeds to describe six classes or types of stitches - chain stitch, hand stitch, lock stitch, multi-thread stitch, over edge stitch, and covering chain stitch. For each stitch class, it explains how the stitch is formed and common applications in garment construction. The goal is to present the key stitch types and their uses in apparel manufacturing.