Rev Dr Alan J. Spence 
Christology: A Guide for the Perplexed [PDF ebook] 

Today Christology is of concern to both New Testament scholars and theologians alike and continues to provoke debate within the Church.
Christology: A Guide for the Perplexed examines the key debates and defining moments in the early Church and the Reformation. After a brief introduction providing a basic definition of Christology, this historical background provides an essential foundation on which to outline later developments in Christology. Alan Spence then considers the Quest for the Historical Jesus, the work of the major theologians in this area including Barth and Schleiermacher, and from the present day, N.T. Wright and Pannenberg, and explores the contemporary arguments within the field of Christology.