The book "Data Quality" provides a comprehensive analysis of research and practice in the field of data quality, aimed at technically oriented readers. It is based on the insights from the MIT Total Data Quality Management (TDQM) Program as well as work from leading research institutions. This specialized book primarily targets researchers, practitioners, educators, and students in the fields of computer science, information technology, and other interdisciplinary areas. It establishes a theoretical foundation that is both rigorous and relevant for addressing complex issues related to data quality. The book serves as an excellent introduction for doctoral students looking to deepen their research in the area of data quality and offers IT professionals valuable insights into theoretical findings that they can apply in their practice.