Yes, this book is now 27 years old, but nice. It's only 160 pages before you get into the appendices and notes, it packs a good compact punch. I didn't exactly parse it to see what holes are in it in light of ARRB work in the 1990s and other stuff, but it's probably not all that much.
I only learned new tidbits about the whole affair, no great revelations; that says more about me and my recent interest in this more that it says anything about the book.
If I were trying to browbeat someone into becoming interested in Oswald/JFK (a nearly impossible task, mostly met by blank stares), this would be the book I'd use. It's not a challenge to read like Newman, and it's not an 1,100 page crackpot-or-genius opus like Armstrong. Dr Melanson knew how to write and edit.
Philip H. Melanson spent decades in research of the political assassinations of the 1960's. As I share that interest, I have encountered his works previously on the killings of RFK and MLK. 'Spy Saga' is one of the more intelligent and balanced investigations of the enigmatic and shadowy character that was Lee Harvey Oswald. A quote from the Goodreads review of this book states, 'he is by far the most fascinating and complex assassin in American history.' Fascinating and complex, he may have been. Assassin, I certainly do not think so. Although Melanson's 1990 publication spans just one hundred and sixty pages, including Appendix A & B, it is a fully comprehensive compendium of Oswald's still unexplained links with U.S. Intelligence. There are no conspiracy theories here. The author builds his analysis and presents his conclusions on historical factual evidence. Evidence that has been largely ignored or unanswered by the official government investigations or U.S. intelligence agencies. A highly recommended and essential read for those interested in the JFK assassination.