This volume investigates the cognitive mechanisms underlying assimilation and contrast effects in social judgment and self-evaluation. The authors, Diederik A. Stapel and Jerry Suls, synthesize decades of experimental research to explain how individuals categorize social information relative to internal standards and external benchmarks. By examining the interplay between context and perception, the text provides a comprehensive framework for understanding why people sometimes perceive themselves or others as similar to a standard, while at other times perceiving them as distinct or opposite.

Experts recognize this work as a significant synthesis of social cognition research, often cited for its detailed exploration of judgment heuristics. Students and researchers frequently utilize this text to understand the foundational mechanisms that govern how social information is processed and categorized.