The introduction and ten articles comprising this book represent the work of participants in a conference held at the Woodrow Wilson Presidential Library (WWPL) in Staunton, Virginia, in April 2010 on the topic "World of Power/World of Law: Wilsonianism and Other Visions of Foreign Policy." These contributions stand on their own as examples of fine scholarship about an important topic. As a whole, this book also forms part of a larger tradition of research and scholarship about President Wilson that dates to the year 2000, when the WWPL produced the first of five national symposia. A brief history of these symposia provides a context for understanding the present book and the importance of current scholarship about Woodrow Wilson as we approach the centennial of his election to the presidency in 2012.