Michael Horton recently wrote a chapter for the new book, Calvin’s Theology and Its Reception: Disputes, Developments, and New Possibilities. You can get your copy through Amazon for less than $20!
Dr. Horton’s chapter is entitled, “Calvin’s Theology of Union with Christ and the Double Grace: Modern Reception and Contemporary Possibilities.” Here’s a brief preview:
A typical trajectory among many Roman Catholic interpreters conceives of Calvin’s theology as a series of contrasts, with a radical diastasis between God and humanity, transcendence and immanence, reality and signs…. Obviously this interpretation gives little attention to Calvin’s considerable emphasis on union with God in Christ. This thesis is pressed in spite of Calvin’s explicit and sometimes stern criticisms of nominalism and an emphasis on divine-human communion (indeed participation) that appears already in the opening paragraph of the Institutes.
Obviously not for the faint of heart (or mind), but if you know a budding or seasoned scholar who wants to dig deeper into the development of Reformed theology, this is a good volume for his or her library.