The document discusses the importance of developing effective messages in advertising. It covers developing messages around the 6 Ws - why, what, when, where, how and who. Key aspects of message development include understanding the target audience, crafting the right message for the product or service, and choosing appropriate media and creative execution. Effective messages must be integrated across different media channels while maintaining a consistent concept. Developing advertising messages requires understanding consumers, crafting promises that match reality, and a sense of social responsibility.