The articles within the Encyclopedia cover the field's history; key theories and research methods; the environment and context of organizations and work; the main psychological individual processes; diversity in its different forms; issues concerning jobs and work systems; the interpersonal and social components of organizational life; organizational processes and organizational change; the core topics within human resources psychology and occupational health; as well as the main individual and organizational outcomes. The diversity of the contributing authors and the attention paid to cross-cultural issues ensures a wide, international approach. Many articles also provide important inputs for psycho-social interventions and insights for professional practice. Finally, the style in which the contributions are written is appealing and accessible to specialists and non-specialists alike, including students in the social sciences and other interested readers.