Because the public must trust the fairness of the judicial system and because judges symbolize that system, they are required to behave ethically in their private lives. Since 1924, the American Bar Association has created four model codes of ethics, and every state now has a code based on one or another of them. Enforcement, typically by an appellate court, a disciplinary commission, or both, involves investigations, hearings, rulings, and written opinions justifying the rulings. McKoski, a retired Illinois circuit court judge who teaches at John Marshall Law School, mines the mass of accumulated documents and case law to present a systematic and comprehensive picture of what judges can ethically do in their off-duty hours. It covers family relationships, organization memberships, financial dealings, and much more. McKoski is thorough. Like most treatises, his book will be most valuable as a reference book…. Because regulating private behavior often involves limiting private rights—keeping a judge from joining a disreputable organization, for example, raises First Amendment issues—the book may have classroom utility in civil liberties courses. Summing Up: Highly recommended. Graduate students through professionals.