By Edward Jay Epstein. The first in what became Epstein's Assassination Chronicles trilogy, with an intro by Richard H. Rovere and blurbed by Dick Goodwin. Epstein was on the leading edge of published conspiracy thinking around the murder of JFK; the book came out in 1966.
So did this trim little paperback, which is in decent shape: a previous owner's name/log from '66 inside the front cover; a cracked spine; page toning, and a couple of spots/marks inside. Sits straight, though, pages snug; some edgewear, but overall a fine reading copy.