Only through practice can knowledge be turned into understanding, understanding into judgment, judgment into ability, and ability into practical application. This exercise book on economics is intended to provide an opportunity for such practice. Anyone who engages with the exercises collected here, which are mainly taken from examinations, will soon notice an increase in confidence with the material, a quicker grasp of the right solution elements, and an ability to solve economic problems in various contexts. The contents include tasks and solutions on: basic concepts, essence and tasks of economics; economic systems and their problems; fundamentals of circular flow analysis, national accounting, and input-output tables; and microeconomic theory, including household theory and firm theory.