Roger E. Olson (PhD, Rice University) is professor of theology at George W. Truett Theological Seminary, Baylor University. He is a prolific author whose volumes include The Story of Christian Theology and The Mosaic of Christian Belief. He is also coauthor of 20th-Century Theology. Olsen identifies as an Arminian and a Baptist.
Such a helpful resource for clearly explaining what all Christians believe about a variety of doctrines, what’s heresy with each doctrine, and what are the different beliefs held by Christians (how different denominations and groups are interpreting Scripture). It explains big church words and explains church history as it relates to the development of creeds and doctrines.
Definitely recommend for church leaders and small group leaders, particularly in answering questions about doctrines and what different groups of Christians believe about those doctrines.
While I've read a number of textbooks on Christian doctrine, this one stands for one reason: Olson seeks to show both the diversity and unity within the Christian tradition. By taking this approach, he helps the reader to move away from sectarianism by clearly articulating what every tradition agrees one. Olson is a well-known critic of Calvinism (see his Against Calvinism), however, he shows the same irenic attitude regarding this vexed issue, seeking to establish common ground, as he does with every other position.
In some cases, however, his approach will be seen by some as going to far. For instance, he argues that open theism should not be considered heretical, he states that one view of the atonement (Christus Victor, Penal substitution, etc.) shouldn't be prioritized over another, he argues that the psychological model of the Trinity needs to be balanced by the social model, and he states that advocates of annihilationism are within the boundaries of orthodoxy. Regardless of whether one disagrees with his assessment of these issues, his overall tone and knowledge makes this a book worth consulting. As a Calvinist, I admire his ability to see the unifying thread in the Christian tradition and wish that there were more among my own 'tribe' that would adopt an approach more like Olson's rather than being one of Machen's warrior children.