The purpose of this site is to make freely and easily available to the public Richard Posner's largest and greatest body of work — his judicial opinions. The database contains opinions from 1981 to 2006. It will not contain the most recent opinions.

Why this site? While Posner's books and popular writings are easily available to the public, his opinions are difficult or expensive for the public to access, let alone search. This site, for the first time, collects almost all of his opinions in a single searchable and easily readable database.

For lawyers and those interested in law, Posner's opinions have a particular substantive value. One thing that distinguishes the opinions is the effort to try and get at why a given law actually exists, and an effort to try and make sense of the law. That can make them more useful than most case reports.

In addition, the opinions often develop the American general and state common law. Posner is among the judges who feels free to take the rule of Erie as more suggestion than injunction.

Finally, some of the opinions are funny.