This document discusses key concepts around how consumers are exposed to and perceive marketing stimuli. It covers factors that influence exposure like ad placement and shelf positioning. It then examines how attention works and ways to attract and sustain attention, such as through pleasant, surprising, or easy-to-process stimuli. The document also reviews the five senses and how marketer can affect sensory perceptions. Finally, it analyzes the comprehension process and how marketing elements like brand names, price, advertising and more can influence consumer inferences.