This book is aimed at natural scientists with one to two semesters of physics as a minor, as well as at teachers in high schools and vocational schools. The authors are known as excellent university lecturers, and with this book, they succeed in conveying intuitive physical thinking to the reader. This is supported by many illustrative images. For each important mathematical formula, its application is demonstrated through examples, thereby providing the foundation for solving problems independently. The presentation is concise, yet it conveys the current state of physics to the reader. Students, teachers, and anyone interested in the natural sciences will find a quick and effective access to modern physics here.