The History of Christianity in the Reformation Era by Brad Gregory

Not actually a book but this is a good place to keep track of it.

This is a class from the Teaching Company, with the usual 1/2-hour lectures on CD. It covered the origins of the Reformation up through the Restoration in England. The professor took a geographic approach along with tracing the major movements (Anabaptism, Protestantism and Roman Catholicism.) He took the approach of trying to portray the nuances of the various movements vs. a black-and-white set of motivations for change (or lack thereof.) One interesting thing was the changes the Catholic church made in response to the complaints of corruption and lack of personally vital spiritual life. The response was to create an educational and catechetical approach to training the laity in the beliefs of the church.

I learned a lot about the Anabaptists and the distinctions from Protestants. Gregory also did a nice job accurately portraying the Calvinist movements and Lutheranism.