"Calvin was forced to flee France in 1535 to Basel, Switzerland. There he produced a small book about his new reformed beliefs. It was designed to offer a brief summary of essential Christian belief and to defend French Protestants, who were then undergoing serious persecution, as true heirs of the early church. This first edition of Calvin's Institutes of the Christian Religion (1536) contained only six brief sections. By the last edition (1559), it had grown to 79 full chapters. The Institutes presents a vision of God in his majesty, of Christ as prophet, priest, and king, of the Holy Spirit as the giver of faith, of the Bible as the final authority, and of the church as the holy people of God. Its doctrine of Predestination is Calvin's deduction from his belief in human sinfulness and God's sovereign mercy in Christ."

See Also:
Institutes at: Phil Johnson's site,
Center for Reformed Theology and Apologetics,
Institute of Practical Bible Education.