The book "Organizational Interoperability in E-Government" offers a comprehensive analysis of interoperability in the field of electronic governance. It emphasizes that interoperability encompasses not only technical standards and interfaces but also considers organizational, legal, and cultural aspects. The authors, Herbert Kubicek and Ralf Cimander, present an innovative approach based on empirical research that distinguishes itself from common top-down methods. Instead, a bottom-up approach is pursued, addressing the challenges of interoperability in governance. By analyzing best practice cases in e-government, the authors develop a conceptual framework that details options for IT governance in public administration. These empirically grounded insights also enable a critical evaluation and improvement of existing frameworks. The book is aimed at professionals and researchers in the field of e-government and provides valuable insights into the practical implementation of interoperability.