The book "Datatype-Generic Programming" offers a comprehensive examination of the concepts and techniques of datatype-generic programming. It highlights the development of programming paradigms and their parameterization, which allows programs to be adapted to the structure of the data they process. In an era where structured data is ubiquitous on the internet, the relevance of datatype-generic programming becomes evident, as it enables the utilization of the internal organization of data to enhance the efficiency of compression algorithms, for example. The book is aimed at professionals and students who wish to gain a deeper understanding of the mechanisms of datatype-generic programming and provides valuable insights into the challenges and opportunities associated with this programming approach.