I commend Kerr for his clarity in explaining some of Thomas's most difficult concepts and his engagement with Thomas's more oft-neglected topics like trinitarian theology and the personhood of Jesus Christ. With that said, as other reviewers have noted, the title and subtitle of this book is a little misleading as Kerr does not really expound on differing "versions of Thomism." Rather, he is attempting to clarify his own reading of Thomas ("what Thomas seems to actually be saying is..." or "If you read Thomas within his context...") by using other interpretations as a starting point.