What is a tacking stitch?

A tacking stitch is indeed a temporary stitch used to hold fabric layers together. It serves a practical purpose during the sewing process by stabilizing pieces of fabric while other sewing techniques, such as permanent stitching or finishing, are applied. This is particularly useful when working with delicate fabrics or in complex projects where alignment is critical. The tacking stitch allows for adjustments to be made before committing to a permanent stitch, ensuring the final product meets the desired specifications.

While other options mention decorative or permanent stitching, they do not accurately describe the primary function of a tacking stitch. Instead, the emphasis on its temporary nature and utility in maintaining fabric alignment highlights its importance in practical sewing applications.