Alister E. McGrath & Darren C. Marks 
The Blackwell Companion to Protestantism [PDF ebook] 

Alister E. Mc Grath is Professor of Historical Theology at
Oxford University, and Senior Research Fellow at Harris Manchester
College, Oxford. He is a world-renowned theologian, and is the
author of numerous bestselling titles available through Blackwell
Publishing, including Christian Theology: An Introduction
(4th edition, 2007), Christian Theology Reader (3rd edition,
2007), and Dawkins’ God (2005).
Darren C. Marks is Assistant Professor of Theology and
Religious Studies at Huron University College and in the Faculty of
Graduate Studies at the University of Western Ontario. He is the
author of numerous articles in systematic theology and Canadian
ecclesiastical history, and is the editor of Shaping a Global
Theological Mind (2007) and the forthcoming Justifying God:
A Theology of Sin.