The book you are holding is a good start toward learning basic economic concepts. If you have bought (or are thinking about buying) this book, you are probably one of the following:
A college student who needs a supplement to a textbook in a course on principles of microeconomics, principles of macroeconomics, fundamentals of economics, or some other similar introductory course
A college student in an introductory course who needs some additional practice problems to prepare for an exam
A high school student taking Advanced Placement (AP) courses in microeconomics or macroeconomics for college credit
A student in an undergraduate or MBA program who needs a quick go-to guide for reference in intermediate or advanced economics courses ...