Part I: Trait and type theories. Trait and factor theory ; Occupations: information and theory ; Work adjustment theory ; Holland's theory of types ; Myers-Briggs type theory -- Part II: Life-Span theory. Career development in childhood ; Adolescent career development ; Late adolescent and adult career development ; Adult career crises and transitions -- Part III: Special focus theories. Constructivist and narrative approaches to career development ; Relational approaches to career development ; Krumboltz's social learning theory ; Social cognitive career theory ; Career decision-making approaches -- Part IV: Theoretical integration. Theories in combination.