Quilting techniques involve various methods used to create quilts, which are layered textiles made of a top layer, batting, and backing. Common techniques include piecing, where fabric pieces are sewn together to form a design, and appliqué, which involves stitching smaller fabric shapes onto a larger background. Another important technique is quilting, the process of sewing through all layers to hold them together, often using decorative patterns. Additionally, free-motion quilting allows for creative designs by moving the fabric freely under the sewing machine. Each technique contributes to the quilt's overall aesthetic and functionality.