This book investigates the positive theories of congressional institutions, exploring how they function and evolve based on rational choice and institutional design principles. Kenneth A. Shepsle, a distinguished scholar in political science, draws upon extensive research and theoretical frameworks to analyze the internal dynamics and external influences shaping the U.S. Congress. The work presents a rigorous examination of legislative behavior, committee structures, and the strategic interactions among lawmakers.

This work is recognized as a foundational text in the study of legislative institutions, particularly within the framework of positive political theory. Scholars often cite Shepsle's contributions for their rigorous analytical approach and their ability to explain complex congressional behaviors through coherent theoretical models. The book is considered essential reading for graduate students and researchers specializing in American politics and legislative studies, offering a robust framework for understanding the strategic incentives that drive congressional action.