This document discusses consumer perception and how it impacts marketing. It defines perception as how individuals interpret and make sense of stimuli. Consumers organize stimuli based on principles of Gestalt psychology like similarity, closure and proximity. Their perceptions are also influenced by expectations and past experiences. The document also discusses sensory adaptation and how it affects what consumers notice. It provides examples of experiential marketing and how marketers can appeal to multiple senses. Finally, it explains how consumers can add biases like stereotypes when forming perceptions.