Exceptionally stimulating. This literary study of Lewis' Ransom Trilogy is widely regarded as the best work on the subject, and not without reason. Schwartz holds a commanding knowledge of modern literature and traces the several influences on Lewis' imaginative elements in the books. His argument that the trilogy presents the antithesis of the developmental method (evolutionary paradigm) against the theistic Christian worldview through a combination of archetype/ectype comparison is remarkable. He outlines the process of transposition as each viewpoint critiqued by Lewis is developed and contrasted with a divine original.
For those intrigued by the series, this presents a succint presentation of the uniting elements and the distinguishing emphases of the books. (Also, I felt somewhat vindicated by the explanation of how THS is the more complex, strangest, and less Lewisian of the three.)