The Missouri Constitution is the state constitution of the U.S. State of Missouri. It is the supreme law formulating the law and government of Missouri, subject only to the federal Constitution, and the people. The fourth and current Missouri Constitution was adopted in 1945. It provides for three branches of government: legislative (the Missouri General Assembly), executive (the Governor of Missouri), and judicial (the Supreme Court of Missouri).

This approachable, valuable exposition on Missouri government fills a significant gap in the literature on the interpretation, use, and operation of state constitutions. The book provides a sweeping look at the constitutional foundations of the processes of Missouri government and places Missouri within the context of our larger federal system. The essential elements of government outlined in the constitution are introduced, and then analysis and interpretation of each document's articles is covered.