The apostle Paul’s Letter to the Galatians has had a deep impact on Christian theology and practice, far beyond its short length. It has inspired great theologians; it also sparked reform movements. Its message, however, can be hard to follow for the average reader. This study guide opens up the message of Galatians to people without a theological education and for Bible study teachers and working pastors. Explaining the background from which Paul is writing, the author clarifies the flow of Paul’s argument so the average reader can grasp its revolutionary import. Paul’s letter sparked a revolution in the author’s own spiritual life. This study guide can help do that for others as well.