This document provides instructions for using S-curves in Photoshop to enhance images. The tutorial explains how to open an image in Photoshop, navigate to the Curves adjustment option, and manipulate the curve to create an S-shape. This S-curve technique can make images look more polished and refined by adjusting lightness and contrast. The summary walks through opening an image, finding the Curves tool, and dragging points on the graph to form an S-curve before saving the edited file.