The document provides an overview of advertising planning. It discusses the history and origins of planning in the UK and US in the 1960s and 1970s. The role of the planner is to represent the consumer perspective within the advertising triangle between the agency, client, and consumer. Planners conduct research to develop insights about consumers and use those insights to inform strategic thinking, brief creatives, and ensure advertising output stays relevant and on-strategy. They guide the creative process and remain engaged throughout the campaign lifecycle.