The "Category Management Handbook" provides a comprehensive introduction to category management, a crucial factor for commercial success in procurement and supply chain. Since the early 1990s, this method has proven valuable by helping organizations collect and analyze key data about their procurement expenditures. The goal is to develop long-term strategies that significantly enhance a company's commercial performance. This handbook breaks with the tradition that category management is only accessible to consulting firms and instead offers a practical, step-by-step approach. It includes easily applicable tools, templates, and checklists that enable readers to implement the methods independently within their organizations. The clear and understandable language makes it an essential guide for professionals in procurement and supply chain who aim for significant improvements in their organizations.