The topic of personality has provoked brilliant speculation, careful observation and experimental research. Prof. lazarus and Dr. Opton have gathered into this volume twenty-two seminal articles and excerpts on theoretical and experimental work. The four sections deal with description of personality structure, development of personality, dynamics of personality and determinants of personality. Among the writers represented are Gordon Allport, Raymond Cattell. Erik Erikson, Sigmund Freud, Ernest Hilgard, Robert Holt and Carl Rogers.