This document discusses the importance of lighting in film, particularly in the horror genre. It explains that lighting is used to create mood, drama, and suspense and has been integral to the fear factor in horror films from early German impressionist films to more modern titles. Specific lighting techniques discussed include silhouette, uplighting, spotlighting, and shadow, which are used to reveal or conceal objects of horror and generate unease. The document also provides descriptions and examples of different lighting angles including back lighting, key and fill lighting, under-lighting, top lighting, and side lighting.