Deciding which views command a consensus and which are still hotly debated is, to some extent, a judgment call. After spending about forty years in the economics profession, attending dozens of conferences, and speaking with hundreds of economists, I feel confident making those judgments. Nonetheless, while writing the manuscripts of my texts, I benefited from the input of a great editor and from prepublication reviews by many instructors. They were invaluable at pointing out when the views being expressed were biased or idiosyncratic. That is, they told me when I wasn’t being a faithful ambassador, allowing me to correct course before the book went to print.