I'm building up my library on the Protestant classics and essentials. My first endeavor is to obtain the core materials for the main three branches of historical Protestantism: Lutheranism, Anglicanism and Presbyterianism.
For Lutheranism, I have The Book of Concord, which contains the small and large catechism of Luther.
For Presbyterianism, I have The Institutes of the Christian Religion by John Calvin.
For the Baptists, the best I could figure out was a large collection of writings by Charles Spurgeon.
But for Anglicanism, what should I get for a definitive exposition of the faith? I know about The Book of Common Prayer, but I suppose I always assumed that it was primarily a prayer book more than an in depth exposition of Anglican doctrine (go figure!). So what is the best historical book to turn to for better understanding the worldwide communion?