Band of Brigands; The Extraordinary Story of the First Men in Tanks by Christy Campbell
Good book that.
Bought some while ago, but only just got around to reading it:

Not a religious person myself, but very interested in the subject (to the extent of studying it at A Level at least). A tome chock full of heroes and villains: John Wycliffe, the Lollards, Richard II and the Peasants' Revolt, Jan Hus and Martin Luther, William Tyndale, Sir Thomas More (boo!), Henry VIII, Thomases Cranmer and Cromwell, Mary Tudor, King James I, John Bunyan. To name but a few.
Highly recommended. A compelling story from those bizarre times when they would burn Christians at the stake for having read the Bible. Quite inspirational really, a few steps on the road out of darkness and towards the light (that light being thinking for yourself rather than just thinking what you are told).
And to boot, out of all this these people made a beautiful thing, above all else: The modern English language.