Basting, as it relates to quilting, is the process of temporarily holding three layers of fabric together in preparation for quilting. Basting can be done by hand sewing, machine sewing, safety pins, spray glue, or more.  When using any form of stitching to baste a quilt, the stitch length is generally at least 1/2″ long or longer. When basting using safety pins or other pins, the pins are generally 4-6″ apart over the entire area of the quilt.