Organizational value creation is becoming increasingly complex. The St. Gallen Management Model presents two perspectives for this: The task perspective discusses the design fields of an integrative management practice in the interplay of environment, organization and management. The practice perspective illuminates the prerequisites of effective and responsible management practice. Organizational value creation is becoming increasingly complex. This book accounts for this complexity by presenting two interrelated perspectives: The task perspective discusses the design fields of integrative management practice in the interplay of environment, organization, and management. The practice perspective illuminates the prerequisites for effective and responsible management practice. "Managing in a Complex World" is the latest version of the St. Gallen Management Model (SGMM). It integrates all previous versions of the SGMM and places particular emphasis on educational purposes.