Book excerpt: Heinrich Bullinger (1504–75) was an important and influential sixteenth-century Protestant Reformer. Sadly, today, many are unaware of his significance. This book serves as a gateway into understanding Bullinger’s life and theology, introducing them in a fresh and accessible way for non-specialists. After outlining Bullinger’s life-story, the main theological themes in Bullinger’s thought are explored through chapters on Holy Scripture, God, Christ, the Holy Spirit, predestination and covenant, sin and salvation, church and ministry, Word and Sacraments, the state, and last things. A concluding chapter considers the abiding significance of Bullinger’s theology and what his views can mean for faithful Christian living today.