The book "In-Memory Data Management" offers a comprehensive analysis of the impact of in-memory technologies on corporate management. Over the last five decades, information technology has fundamentally changed the world, and this work highlights how companies transition from traditional, fragmented database models to integrated solutions through the use of in-memory data management. The authors, Alexander Zeier and Hasso Plattner, explain the technical foundations that enable both transactional and analytical operations to be performed within a single database. This second edition includes updated content that addresses the development of in-memory applications in businesses and demonstrates how these technologies can enhance the efficiency and performance of business processes. The book is aimed at students, IT professionals, IT managers, and executives who wish to design innovative business processes.