The document discusses two models that describe how marketing communication works: the macro model and the micro model. The macro model outlines the communication process between a sender and receiver, including how a message is encoded, transmitted through media, decoded, and can be impacted by noise or different experiences between the sender and receiver. The micro model focuses more specifically on the consumer response process, outlining models like the hierarchy of effects model that describe the stages a consumer progresses through when exposed to marketing communications.