Photoengraving is a printing process that uses photographic techniques to create images on metal plates. This method involves exposing a light-sensitive coating on the plate to a photographic negative, which transfers the image. After exposure, the plate is developed, revealing the image in relief, allowing for precise reproduction of photographs and detailed illustrations. Once the image is prepared, the plate can be used in various printing methods, such as offset printing or letterpress. Photoengraving is widely used in the publishing industry for producing high-quality images in books, magazines, and other printed materials.