In light of the escalating shortage of skilled workers, career and competency development as a means of retaining sought-after professionals and knowledge carriers is increasingly becoming central to sustainable corporate development. The book offers a systematic review of the international state of research and pointed scientific considerations. Additionally, the authors present the results of their own empirical surveys based on qualitative interviews with executives, HR managers, and highly qualified employees in knowledge-based fields. Building on this, an innovative career management model has been developed that takes into account the diversity of career types at the employee level and illustrates this through corporate case studies. Action recommendations and examples of good practices complement the book.