Stephen A. Black has assembled an extraordinary range of materials to provide the first comprehensive psychoanalysis of O'Neill. Others have offered fragmentary perspectives, or analyses based on a little reading in psychoanalytic theory, but Black brings his experience as a trained analyst (as well as a literary scholar) to a through review of the historical documents. It must have been harrowing work for him, but we all stand to benefit from his having gone into the very mouth of a hellish psyche. (Hmmm... not so sure about that metaphor.) Anyway, it's a terrific book.