I would rate this book as "OK" Jack Ruby was a thug and a punk but, we already knew that just from the historical accounts we've seen over the years about the Kennedy assassination and the subsequent killing of Lee Harvey Oswald. The book gives plenty of information on that. Lots of books have been written about Oswald but, this is an interesting account of the life of Jack Ruby. Although I probably protest too much since this book was written in 1978, only 15 years after the event, reading the book in 2014 I have 36 years of additional works and writings on the same subject. If you realize before you begin that this is not really a Kennedy/Oswald book but, surrounds the events of the assassination you'll enjoy the book.