Books in Barron’s “Business Review Series” are intended mainly for classroom use. They make excellent supplements to main texts when included in college-level business courses. In adult education and business brush-up programs they can serve as main textbooks. All titles in this series include review questions with answers. This expanded, updated text explains plotting and understanding economic graphs, market equilibrium and the nature of the price system, macroeconomics, microeconomics, and the dynamics of international trade.