This document provides an overview of the World Trade Organization (WTO). It discusses that the WTO is the international organization that oversees global trade rules between nations. The WTO aims to ensure trade flows freely and predictably. It was established in 1995 but built upon the multilateral trading system originally set up under GATT over 50 years prior. The document outlines several key principles and agreements of the WTO system including most favored nation status, national treatment, and agreements on agriculture, services, intellectual property and other areas.