With this reader you receive an invitation to participate in a travel into actual fields of conceptional development and empirical research in the land of psychological orientated management studies. The authors focus on different perspectives as well as specific theoretical approaches in their common concern to contribute to the understanding and improvement of organizational development: (1) the organizational level including aspects of Marketing strategies, Quality Management and Training, (2) the level of interaction between superiors and subordinates referring to the theory of Transformational Leadership and (3) an individualistic level which emphasizes the employees' personality and values. Organizational change is a challenge for organizations to develop concepts for training, learning processes in the workplace and interaction models between different hierarchical levels. At least, what is the appropriate leadership style in a changing context?