Never again boring economics lessons? This practical textbook conveys economic content using a variety of methods, and above all, with fun and joy in problem-solving! Economic knowledge is embedded in questions and experiments designed to encourage you, as the reader, to make your own decisions and take action. From your results, you will then inductively derive general economic knowledge. The thematic selection is aligned with the typical content you encounter in economics classes or hear in the news. As a reader, you will take on the role of active participants from businesses, the ECB, or the state, tackling concrete and practical tasks and questions. The texts and exercises are presented in an engaging, exciting, and sometimes playful manner. This serves as an introduction to the fundamentals of economics.