The 1990, ninth edition, of Robert's Rules of Order Newly Revised is the only currently authoritative volume to contain the complete Robert's Rules of Order subject matter. It has been totally reset and redesigned for easier use. This ninth edition supersedes all previous editions and automatically becomes the parliamentary authority in organizations whose bylaws prescribe Robert's Rules of Order. This edition has been updated to address common inquiries, and it incorporates new rules, interpretations, and procedures made necessary by the evolution of parliamentary procedure.