First positive point of the book: it poses the context. That is, even if you have very little knowledge (see no) over this period, the author gives us enough information to identify the main characters in this dramatic piece.
The first chapters are dedicated to introduce Lyndon B. Johnson (LBJ), the Kennedy clan (grandparents, parents, children), J. Edgar Hoover (FBI boss)
The second part of the book explains the causes that have led to the assassination of JFK. Roger Stone shows us that Kennedy once in the presidency, are done quickly very powerful enemies: the FBI, the CIA (since the Bay of Pigs), the Mafia, industrial oil and LBJ, they counted disclose certain Secrets of vice president which would have led to jail!
Similarly, the author of the corruption of LBJ. Its links with the 8F Subsequently, Brown & Root and Bell companies: he received money and contacts in exchange they made the laws are in their favor. More importantly, the book explains that LBJ before that of JFK, had already organized several murders Sol Estes and Bill Mc Wallace.
Part Three: the 11/22/1963, on D-Day, assassination. The facts are described, analyzed the attitude of Johnson. Then leans Oswald, his connections with the CIA and to Ruby and its connections with the police and the Mafia.
The last part focuses on the investigation of the Warren Commission. One learns not only that many facts had suggested a plot (several shooters, bullets hit Kennedy's face and not back, the theory of the magic bullet that is no longer defensible) but also as members of the Commission were part of the CIA, FBI and therefore orientaient the investigation in favor of the conclusion "Oswald lonely killer"
In conclusion, this book is very comprehensive because it treats before, during and after November 22, 1963. It shows how seriously the enemies of Kennedy came together with LBJ as "keystone" to get rid definitely the Kennedy brothers. The author's statements are sourced, we have names, dates. In short, we are far from baseless conspiracy.