The study book covers the core areas relevant to training from the first three books of the German Civil Code (BGB) in a single volume. This aligns with the basic course model practiced at many law faculties. Students are familiarized with legal tools, particularly the methodology of case processing. Numerous cases and examples illustrate the material. Each chapter is enriched with self-test exercises; the model solutions can be found at the end of the book. A chapter on the preparation of legal opinions rounds off the volume. The book is specifically tailored to the needs of those who are encountering civil law for the first time.