If you are looking for something to read this summer, I would suggest some of the following I gleaned from the Fall 2010 Eerdmans catalog:

Conor Cunningham’s Darwin’s Pious Idea

Ron Austin’s Peregrino: A Pilgrim Journey into Catholic

Charles Mathewes’ The Republic of Grace: Augustinian
Thoughts for Dark Times

Carl Braaten’s Because of Christ: Memoirs of a Lutheran

Livio Melina’s The Epiphany of Love: Toward a Theological
Understanding of Christian Action

Edward O’Flaherty, Rodney Petersen and Timothy Norton’s
Sunday, Sabbath and the Weekend: Managing Time in a Global Culture

Kevin Codd’s To the Field of Dreams (subject: on making the pilgrimage to Compostella)