Book excerpt: This book examines the Whig theory of resistance that emerged from the Revolution of 1688 in England, and presents an important challenge to the received opinion of Whig thought as confused and as inferior to the revolutionary principles set forth by John Locke. While a wealth of Whig literature is analyzed, Rudolph focuses upon the work of James Tyrrell, presenting the first full-length study of this seminal Whig theorist, and friend and colleague of John Locke. This book provides a compelling argument for the importance of Whig political thought for the history of liberalism.