This introduction presents an overview of the key concepts discussed in the subsequent chapters of this book. The book describes methods that can be carried out in daylight and are therefore called light-insensitive. Innovative and influential artists, such as Robert Rauschenberg, whose artwork begins the Transfers, Lifts, and DIY Printmaking, have utilized these techniques. The business world adapted other photo-printmaking processes. Traditional photographers, used to the light sensitivity of certain substances, may think about the way a photographic technique can change the visual reading of a picture. Arising from a printmaking syntax, photo imaging has always been affiliated with other art forms. The principle for gum bichromate printing was—and is—the basis for photo silkscreen, photolithography, and commercial offset printing. The book provides information on sizing paper, registering negatives, and building equipment such as an ultraviolet exposure unit. It also presents a review of directions for ten light-sensitive processes.