Not only biographies, but worth considering (at least they are in my library) . . .
Battles, Ford Lewis. Interpreting John Calvin.
Hall, David W. The Legacy of John Calvin.
Hall, David W. and Peter A. Lillback. Theological Guide to Calvin's Institutes.
Lawson, Steven J. The Expository Genius of John Calvin.
Lindner, William. John Calvin.
McGrath, Alister E. A Life of John Calvin.
Parker, T.H.L. John Calvin: A Biography.
Parker, T.H.L. John Calvin: An Introduction to His Thought.
Parsons, Burk. John Calvin: A Heart for Devotion, Doctrine, and Doxology.
Piper, John. John Calvin and His Passion for the Majesty of God.
Vollmer, Philip. John Calvin: Man of the Millennium (a "family read-aloud biography").
In a couple of months Westminster Seminary (CA)'s Godrey is coming out with John Calvin: Pilgrim and Pastor.
If you are open to learning via the MP3, then . . .
Dr. David Calhoun's 26 lecture course on "Calvin's Institutes" (free from Covenant Seminary).
Dr. Frank James on the "Calvin I Never Knew (4 lectures).
Dr. Joel Beeke's "Do You Know the Real Calvin?" (4 lecturres).
Dr. Paul Helm's "John Calvin: What's the Big Idea?"
Dr. John Piper, "John Calvin: The Divine Majesty of the Word" - Devotional biographical sketch
Dr. David Calhoun, "Liife of John Calvin"
Dr. David Calhoun, "Theology of Calvin"
And . . .
* Introducing... John Calvin (MP3), three lectures by Mike Reeves
* Early Years, 1509-1536 (MP3), by Michael Haykin
* Ministry Years, 1536-1564 (MP3), by Michael Haykin
* Heroes of the Faith: John Calvin, by Robert Godfrey