(UPDATED: Recommandation retracted. See comments for reason. However, for those who can discern, it is a good factual book.)
I have just finished reading a book which I have bought some time back in 2005 while I was in UK for my Student Exchange Program (SEP). The book review for this excellent book (Reformation: Europe's House Divided 1490-1700 by the Oxford University Professor Diarmaid MacCulloch) is here on my website. However, there are some problems with the author, so if you want to read it, do read it with discernment.