The document proposes a general structure for constructing models of how advertising works. It identifies four fundamental advertising communication models based on the communication objectives of brand awareness and brand attitude. The models help set complete advertising objectives, assist creative specialists, and increase validity of advertising pre-tests. The document outlines the components and steps of an advertising communication model, including target audience, decision-maker, communication effects, and objectives. It differentiates the models based on whether the objective is brand recall or brand recognition for brand awareness, and discusses tactics for each.