A presser foot is a small attachment on a sewing machine that holds the fabric in place while sewing. It helps ensure even stitching and can be changed to accommodate different sewing techniques. Various types of presser feet are available, each designed for specific tasks, such as quilting, zippers, or buttonholes. Using the correct presser foot can significantly improve the quality of your sewing projects. For example, a walking foot is ideal for sewing multiple layers of fabric, while a zigzag foot allows for decorative stitching. Understanding how to use different presser feet can enhance your sewing skills.