This document provides definitions and discusses the advantages and disadvantages of various types of briefs that can structure a media project, including contractual, formal, informal, co-operative, negotiated, commission, tender, competition, and my brief structures. Key types discussed are contractual briefs, which involve a signed agreement and legal obligations; informal briefs, which involve only a verbal agreement; and co-operative briefs, where multiple companies work together on a project. The document also covers the importance of thoroughly reading and discussing a brief with the client prior to production to ensure proper understanding and avoid issues.