Three-point lighting is a basic lighting technique that uses three lights to illuminate a subject: a key light, a back light, and a fill light. The key light provides the main illumination, the back light separates the subject from the background, and the fill light softens shadows created by the key light. Together these three lights can minimize shadows, illuminate facial expressions, and make the subject appear glamorous. High key lighting uses more fill lights for a bright, realistic effect, while low key lighting employs little fill light and creates strong contrasts between light and dark areas.