William Roberts Clark, Matt Golder, and Sona Nadenichek Golder’s groundbreaking Principles of Comparative Politics offers the most comprehensive and up-to-date introduction to comparative inquiry, research, and scholarship. In this thoroughly revised Third Edition, readers have an even better guide to cross-national comparison and why it matters. Readers are offered a new intuitive take on statistical analyses and a clearer explanation of how to interpret regression results; a thoroughly-revised chapter on culture and democracy that now includes a more extensive discussion of cultural modernization theory and a new overview of survey methods for addressing sensitive topics; and a revised chapter on dictatorships that incorporates a principal-agent framework for understanding authoritarian institutions.