For best books about the JFK assassination, I'd rank all of the Weisberg's books ahead of any other books. His knowledge of the documentary evidence is unsurpassed. He really did smash the cover up with his 1975 Post Mortem volume and never got credit in the mainstream media for the awesome work he did forcing the truth out in dozens of FOIA cases. I was never turned off by his passion. It seemed acceptable given the issue involved: the cover up of the killing of the president and the failure by the Congress, the Courts, the mainstream media, the critical liberal intellectual community and the general public to properly respond to the negation of democracy.
Next, I'd go with Presumed Guilty by Howard Roffman. Especially since the young man was only 21. I saw a video tape of presentations he gave in 1976 at UW Stevens Point (along with Wrone, Lesar and Weisberg). Unbelievable. Using only Warren Commision evidence Roffman clearly and logically destroyed the frame up of Oswald. His only book on the case seems to have the best presenation for LHO's alibi. The chapter on how he could not possibly have been a sixth floor shooter and within approximately one minute been on the second floor drinking a coke could have been key to his acquital had there been a trial. We need no speculation or theorizing here: official evidence supports the contention that he cannot have gotten down the stairs in time. The reconstructions and witness statements make this unsupportable. He would have arrived after patrolman Baker. Witnesses on the stairwell would have seen him run past them. It did not happen; officially. Game over.
Next would be David R. Wrone's new book about the Zapruder film and related issues. I've always enjoyed Wrone's take on the facts and issues in this case. I like how he just thrashes Posner and Seymour Hersh about their sloppy scholarship and unsourced claims. Wrone's work is overlooked as it should not be. He's a trained historian with a superior understanding of government, politics and history.
He seems to know the documentary evidentiary base almost as well as Weisberg did. He and Weisberg highlight the information provided by Dr. Joseph Dolce. Dolce just blew apart the single bullet theory. Interviewed by the Warren Commission he just told them flat out, the theory is wrong, after having proved it with experiments. So, of course, they couldn't include him in the Report. And if you're a critic and you're writing a book length treatment of this case, how can you not include Dolce? Well, I don't know, but many writers don't include the Dolce study conducted for the Warren Commission disproving their own theory.
The Chip Selby doc, Reasonable Doubt, has a great interview with him. Critics should be throwing this guy's material in the face of guys like Posner and McAdams.
The 1980 bibliography Wrone compiled with DeLloyd J. Guth is superb. In the introduction Wrone just anihilates Blakey and the HSCA for their failure to properly investigate the JFK case. He cites seven key facts/areas supporting conspiracy - not including LHO as a shooter - that the HSCA badly handled.
Next, would be The Assassinations compilation by Pease and DiEugenio. These two authors are rare in the field of assassination research. They seem to not only write well but also have an excellent command of the documents. Further, they seem to avoid ridiculous speculations found in many other popular treatments.
Next, for me, would by Accessories After the Fact. Meagher did a great job revealing the evidenc of conspiracy and the flaws in the case against LHO without engaging in factless speculation.
Nearing the end of my list I'd add Not in Your Lifetime by Summers. I like how he seems to engage a mass of material and write about in a consise manner.
I'd conclude my list with The Last Investigation by Fonzi. I enjoyed reading this insider's account of the promising, but politically crushed, HSCA. An excellent history of the HSCA has yet to be written.
Not a long list because most of the books on this case are marred by speculation, lack of foundation, procrustean bed theorizing, false connections, poor scholarship, etc.