"Understanding Supply Chain Complexity" is a specialized book that addresses the challenges and dynamics of modern supply chains. In an era where product life cycles are shortening and manufacturing and logistics are globally distributed, the complexity of supply chains is becoming increasingly apparent. The book argues that traditional management approaches, which view supply chains as simple systems, are no longer sufficient to meet current demands. Instead, an integrative approach is proposed that analyzes both the causes and effects of supply chain complexity. By combining performance metrics and system dynamics modeling, a deeper understanding of the dynamics within supply chains is created. Through case studies from the automotive and apparel industries, as well as a preliminary study approach to complexity in service supply chains, such as in healthcare, the relevance of the topic is emphasized.