The book "Semantic Management of Middleware" offers a comprehensive analysis of the challenges associated with managing complex middleware solutions. In an era where applications increasingly rely on distributed systems, the need for a clear and structured approach to the development and management of middleware-based applications becomes ever more apparent. The work presents an ontology-based approach that makes the often implicit conceptual models behind various configurations explicit. By using formal logical semantics, a foundation is established that not only supports flexibility in development and management but also provides the ability to anticipate necessary actions and avoid inconsistent system configurations. The authors demonstrate how these ontological foundations can be implemented in practical, functioning systems, thereby providing valuable insights for professionals and students in the field of middleware management.