This document discusses the conventions and techniques used in psychological thriller trailers, posters, and magazines. For trailers, it notes the use of camera angles, soundtracks, editing patterns, lighting, costumes, props, themes of mystery, tension, and cliffhangers. For posters, it summarizes key visual elements like impactful images, bold fonts, and colors that convey danger and intrigue. For magazines, the conventions highlighted are striking visuals, incentives, reviews, and attention-grabbing captions.