The document provides an overview of several key career development theories. It discusses William Super's life-span, life-space theory which views careers as developing over stages throughout one's life and involving multiple life roles. John Holland's theory proposes that careers and personalities can be categorized into six types and that career satisfaction depends on congruence between personality and occupational types. The document also summarizes Maslow's hierarchy of needs theory, Krumboltz's social learning theory of career counseling, and cognitive information processing theory. Overall, the document outlines several influential career development theories and perspectives.