The document describes the AIDA model of advertising, which consists of 4 steps: Attention, Interest, Desire, and Action. The model was developed in the early 1900s and is used to maximize the effectiveness of advertising campaigns. It holds that an ad needs to first attract attention, then spark interest in the product or service, build desire by highlighting its benefits, and finally provoke the target audience into taking action, such as purchasing. Variants on the model add additional steps like Conviction or Satisfaction.