Michael Bordo, Owen Humpage, and Anna Schwartz explore the evolution of exchange-market policy--primarily foreign-exchange intervention--in the United States. Based on decades of research with unique, heretofore confidential, data consisting of all official US foreign-exchange transactions conducted through the Federal Reserve Bank of New York between 1962 and 1995, Strained Relations is fundamentally a study of institutional learning and adaptation under changing circumstances, most notably the abandonment of the international gold standard.  The authors narrate the economic developments, the political environment, and the bureaucratic issues that fostered this evolution.  They use many economic studies of foreign-exchange-market intervention, but the book is not a survey of the voluminous literature or empirical analysis; it is primarily a historical narrative. A fact-based history of the modern dollar with the unifying perspective of how the US has tried to influence how much the dollar is worth abroad while balancing the priority of keeping inflation low at home, Strained Relations is an intriguing story of gold, secrets, and economic intervention.