The document analyzes the conventions of teaser trailers, focusing on their typical length, structure, and use of suspenseful music, particularly within the horror genre. It discusses how the teaser differs from full trailers in terms of content and presentation, highlighting elements like company idents and climactic finishes. Additionally, it compares the teaser to film posters and magazine covers, noting the importance of visual and textual conventions in creating anticipation and aligning with audience expectations.