This textbook is a comprehensive chemistry didactics resource for chemistry teacher educators, chemistry teachers and trainees. It provides research-grounded and practical-based pedagogical experiences, examples and frameworks for chemistry teachers, as well as a foundation for planning and implementing productive chemistry lessons. The book provides a conceptual and practical roadmap illuminating which didactic knowledge elements are relevant for becoming a chemistry teacher. The book starts off with a pedagogically laden however experience-based justification for the relevance of chemistry didactics, and then progressively breaks down the different knowledge elements that form a complete set of the didactic knowledge and skill elements a teacher needs for teaching. Concrete examples are provided to allow the reader to operationalize the ideas and concepts presented in the book. The structure of the chapters enables the reader to engage progressively and actively with its contents and provided examples, allowing a deep understanding of the diverse links between the presented topics, forming a complete set of the didactic knowledge and skills relevant for successful chemistry teaching.