This document discusses different types of briefs used in various contexts. It defines briefs as documents that provide information to explain things to the public. Job briefs explain details of a position and employee responsibilities. Negotiated briefs allow clients and creators to discuss details and reach agreements. Competition briefs provide rules and guidelines for promotional contests. Co-operative briefs are created collaboratively by groups. Formal briefs require strict adherence to instructions while informal briefs allow for open discussion and changes. Contractual briefs outline duties and expectations. Commission briefs detail projects for media companies. Tender briefs are used in the business bidding process.