(1) The series being written by a guy named Nicholas Needham. It’s called 2,000 Years of Christ’s Power (Evangelical Press) and is proving to be a very good, comprehensive, but easy-to-read account of church history. It comes in several volumes.
(2) And the other book I recommend to students—the best single-volume on the history of theology —written by a Scandinavian Lutheran named Bengt Hägglund, titled simply, History of Theology (Concordia: 2007). It’s a single volume that takes you from the early church almost down to the present day in terms of the history of theology.