This yearbook analyzes the fields of action related to the development and assurance of quality in schools and teaching, as well as teacher training, from the perspective of media use and media education professionalization in the school context. The focus is on the following questions: What competencies do teachers need to meet the demands of the 21st century and to creatively integrate technology and pedagogy? What attitudes and values among teachers and teacher education students regarding media and media usage are crucial factors for the use of media in educational settings, particularly in media didactic contexts? What standards, concepts, and methods are necessary to ensure media education professionalization through teacher training?.