What has been supported by advocates of professional project work for years has now become a reality in the daily routines of many employees and managers: highly project-oriented work structures. Consequently, professionalised project management competence is becoming increasingly vital to business success. Following the five project management phases of DIN 69901:2009 and supplemented by chapters on cross-phase competencies and agile methods, this book offers a clear and professionally sound presentation of the modernised ICB 4.0 framework (effective from January 1, 2024). Its structured content, illustrated by a consistent project example, not only guides readers but also ensures they are well-prepared to meet the IPMA ICB 4.0 examination requirements. This book equips anyone seeking to engage in professional project management with the knowledge and tools needed to successfully apply current best practices.