(CJS; Latin for 'Second Body of the Law') is an encyclopedia of United States law at the federal and state levels. It is arranged alphabetically, into over 430 topics, which in turn are arranged into subheadings. , CJS consisted of 164 bound volumes, five index volumes and 11 table of cases volumes.
CJS is named after the 6th century of the Byzantine Emperor Justinian I, the first codification of Roman law and civil law. The name literally means 'body of the law'; denotes the second edition of the encyclopedia, which was originally issued as by the American Law Book Company (from 1914 to 1937).