McConnell-Brue’s Principles of Macroeconomics, 15 is the best-selling textbook and has been teaching students in a clear, unbiased way for 40 years. The 14th edition grew market share because of its clear and careful treatment of principles of macroeconomics concepts, its balanced coverage, and its patient explanations. More students have learned their principles of Macroeconomics from McConnell-Brue than any other text-12 million of them. The 15th edition is a substantial revision that delivers a tighter, modern, Internet-savvy book.