This Nutshell examines the economics and rules governing international trade, with special emphasis on global and U.S. trade agreements in the disruptive Trump tariff war era. After introductory chapters on trade transactions and cross-border enterprises, it analyzes the World Trade Organization (WTO) package of agreements, Trump blockage of WTO dispute settlement, regulation of imports (including customs law), and trade remedy responses to import competition. Export controls, foreign corrupt practices, preferential free trade and customs union agreements, technology transfers and a chapter on Beyond Trump and Trade follow. Trade policy alternatives are discussed and highlighted as Biden Impacts throughout this Nutshell.