A slip stitch is a basic crochet stitch that is used for a variety of purposes, including joining rounds, creating shape, and moving the yarn to another part of the fabric without adding height. It is a simple stitch that is essential in almost every pattern, from crochet beanies to baby booties. Unlike other stitches, slip stitches are not often used on their own to crochet fabric. Instead, they are used to join rounds, create decorative elements, and finish projects with simple edging. When crocheting in rounds, a slip stitch can be used to close the gap between the first stitch and the last in the round. To do a slip stitch, you insert your hook into the next stitch, yarn over, and pull the yarn through both the stitch and the loop on your hook.