Originally published in 1981, this volume presents papers from the first Ontario Symposium on Personality and Social Psychology held at the University of Western Ontario from August 25-27, 1978. The general theme of the symposium was social cognition. The chapters have been grouped into two major parts. Chapters 1-5 focus on the implications of cognitive structures for social cognition, with particular emphasis on the nature of social schemata and the organization of social information. Chapters 6-11 focus on the consequences for social cognition of various cognitive processes and mechanisms, including verbal and nonverbal communicative processes, category accessibility, salience and selective attention, hypothesis-testing, and self-centered biases. Chapter 12 comments on the general perspectives taken in the previous chapters and suggests some additional directions for future consideration. Today it can be read and enjoyed in its historical context.