The document discusses different types of production briefs, including contractual, negotiated, formal, informal, commission, tender, cooperative, and competition briefs. It provides definitions and examples for each type. The key differences are whether the brief is secured by a contract, involves negotiation between parties, follows conventional structure or etiquette, is informal without documentation, is commissioned by a larger media company, involves competitive bidding or pitching, involves cooperative work between companies, or involves competitive assessment by clients.