This foundational work provides relevant knowledge for students, trainees, and educators in primary teacher training, as well as for experienced primary school teachers. The practice-oriented introduction includes, among other things, a chapter on the history of primary education, as well as foundational chapters on sociology and psychology, transition issues, and professionalization. Each of the 15 chapters includes assignments and questions related to primary education research and the primary school field, which are available as online materials. Thus, this introduction encourages self-reflective engagement with the topics while maintaining a broader perspective beyond one's own discipline. The work not only contributes to personal professionalization but also offers insights for a well-founded approach to teaching.