Backlighting is a photography and videography technique where the light source is positioned behind the subject. This creates a silhouette effect, emphasizing the outline of the subject while often leaving details in shadow. It can add drama and depth to images, making them visually striking. In addition to photography, backlighting is commonly used in film and theater to enhance the mood and focus on characters. It can also be applied in graphic design to create a sense of depth and highlight specific elements, making them stand out against the background.