In his International Arbitration column, John Fellas discusses the Restatement of the U.S. Law of International Commercial and Investor-State Arbitration—a 12-year effort primarily concerned with the role of the U.S. courts with respect to arbitration proceedings. The author describes it as a “majestic, comprehensive, and clear account of the U.S. law of international and investor-state arbitration that belongs on the shelf of everyone involved those fields.”