The document discusses different types of briefs that are used in media production including contractual, negotiated, formal, informal, commission, tender, co-operative, and competition briefs. For each type of brief, a definition and example is provided on how it is used to outline the goals and expectations of a project for a client. The main differences between the briefs are the structure, flexibility, level of input allowed from both parties, and whether they are binding or not. An informal brief for example allows more relaxed discussion while a tender brief provides a fixed budget.