The Center for Computer Assisted Legal Research (CALI) and the Legal Information Institute (LII) at Cornell Law School have partnered to published electronic book versions of the Federal Rules of Civil Procedure, the Federal Rules of Evidence and the Federal Rules of Criminal Procedure.  The e-books are available in .epub format and compatible with ipads and other e-readers.  If you prefer to use these e-books on your PC or Mac, CALI and LII recommend downloading the EPUBReader Add-On for Firefox.  The Legal Information Institute also publishes web versions of these federal rules along with the Federal Rules of Appellate Procedure and the Federal Rules of Bankruptcy Procedure.