This text presents a systematic approach to qualitative content analysis, combining elements of quantitative content analysis with qualitative interpretive methods. It outlines the historical development of content analysis, its basic concepts, and the step-by-step procedures for qualitative content analysis. The text emphasizes the importance of inductive category development and deductive category application, and discusses how computer programs can support these qualitative analysis steps. It also highlights the potential for quantitative evaluation and the strengths and limitations of the approach. The text includes examples of applications in various fields, such as education and psychology, and discusses the methodological considerations for qualitative content analysis. The author, Philipp Mayring, is a professor of pedagogical psychology and has contributed significantly to the field of qualitative content analysis. The text is a comprehensive overview of qualitative content analysis, its methods, and its applications.This text presents a systematic approach to qualitative content analysis, combining elements of quantitative content analysis with qualitative interpretive methods. It outlines the historical development of content analysis, its basic concepts, and the step-by-step procedures for qualitative content analysis. The text emphasizes the importance of inductive category development and deductive category application, and discusses how computer programs can support these qualitative analysis steps. It also highlights the potential for quantitative evaluation and the strengths and limitations of the approach. The text includes examples of applications in various fields, such as education and psychology, and discusses the methodological considerations for qualitative content analysis. The author, Philipp Mayring, is a professor of pedagogical psychology and has contributed significantly to the field of qualitative content analysis. The text is a comprehensive overview of qualitative content analysis, its methods, and its applications.