This book starts from the basic concept of nations forming international community to analyze the theoretical problem of maintaining world order or international order. The author believes that balance of power, international law, diplomacy, war, major powers and other systems of international community are closely related to the maintenance of international order. ""The Ararchical A Study of Order in World Politics"" is both a classic in the field of international relations research and the most prestigious masterpiece of western international relations theory genre known as ""The English School"".