This document discusses various perceptual problems including stereotypes, profiling, halo effects, selective perception, projection, contrast effects, and self-fulfilling prophecies. It provides definitions and examples of each, such as that stereotyping involves judging someone based on perceived group attributes, while projection is assigning one's own attributes to others. The document also discusses impression management, where people try to create desired impressions, and notes managers should use it to enhance their image but also be aware of how others do so. Finally, it recommends techniques for distortion management like balancing automatic and controlled thinking and broadening schemas.