There has been a fair amount of research done on specific aspects of Constitutionalism, Originalism and founding thought, it might be useful to have the material accessible for general use. I learned a great deal about Madison and the Bill of Rights reading : James Madison and the Struggle for the Bill Of Rights by Richard Labunski, Paines Common Sense and Rights of Man, The Conservative Intellectual Movement in America Since 1945 by George H. Nash. I recommend them all. Of course my An Assertion of Right should be required reading also!