40 Influential Christian Books
10. Institutes of the Christian Religion — John Calvin
A seminal work of the Protestant Reformation, Institutes of the Christian Religion serves as an introduction to Protestant faith and is still read by theology students today. The book covers a variety of doctrines, from the church to justification by faith, and from God's sovereignty to Christian liberty — a monumentally important publication from the 16th century.
Institutes of the Christian Religion is available for purchase here.