MicroEconomics by Campbell McConnell

This book covers a lot of ground for business people expanding their formal training or needing a refresher in economics. While it is impossible to go in depth into every economic topic in one book, the authors identify the important subjects that affect businesses today. I found the Microeconomics of Product Markets especially useful for business decision makers to have the right context when evaluating choices. Part five covering Microeconomic Issues and Policies is a must read for people tempted to over-simplify the economic and political choices we face as a society.