Yes, both books are the real deal. "The Five Families" is a definitive, authoritative book on the NY Mafia families--a must-read. "Way of the Wiseguy" is a quick, pleasant, not very profound read.
Five families is the most definitive of all mob books ever in my op.S.Rabb cant be beat in any forum i.m.opinion..Top shelf .!
Although,George Anastasia's "Blood & Honor" I have read about a 136 times in the past 20 some odd yrs.
