This thoroughly updated Fourth Edition, largely by a new co-author, discusses arbitration law and practice clearly and reliably, with engaging context ranging from partisan political battles to a Justin Bieber tweet. Balanced and comprehensive, the book covers major types of arbitration in the United States--commercial (including securities and trade associations), labor, employment, consumer, insurance, medical, and religious--as well as important types of international arbitration, such as commercial, maritime, investment, and sports. A carefully constructed teaching tool, Arbitration intersperses contemporary disputes--involving Uber's app, Donald Trump's confidentiality agreement, Jay-Z's impact on arbitrator diversity, and the relationship between gender and biology--among: All the major Supreme Court cases from 1953 through 2019; Current case law on evolving topics, such as delegation clauses, contracts formed by clicking links on cell phones, and substitutes for the class actions limited by Concepcion; The full text of the Federal Arbitration Act, New York Convention, and Panama Convention; Chapters divided into short, coherent sections suitable for a single class session; and "Questions to Review and Synthesize" after the reading for each class session.