I have read only these so far, but I liked them all:

Originally Posted By: JoeTheBoss

Cigar City Mafia: A Complete History of the Tampa Underworld
Crimetown U.S.A.: The History of the Mahoning Valley Mafia: Organized Crime Activity in Ohio's Steel Valley 1933-1963
The Violent Years: Prohibition and The Detroit Mobs
The Purple Gang: Organized Crime in Detroit 1910-1945
Gangs of St. Louis: Men of Respect
Egan's Rats: The Untold Story of the Prohibition-Era Gang That Ruled St. Louis

I am not good at writing reviews, but I think each book deals well with the specific subject examined.

In particular, "Crimetown USA" deals with little known gangs in Youngstown, like the Greek gamblers, apart from the Italian mob. I heard there will be a 2nd volume about the after 60s period.

"Egan's rats" is a good introduction to "Gangs in St.Louis", even though there already are some references to the Rats in the "Gangs" book which focuses more on the Italian mob.

The Purple gang book was good too, but there is also another book about the gang, by the same author as the St.Louis books.
http://www.amazon.com/Off-Color-Violent-...ds=daniel+waugh
I don't know though whether it's better or not than Kavieff's book.

Willie Marfeo to Henry Tameleo:

1) "You people want a loaf of bread and you throw the crumbs back. Well, fuck you. I ain't closing down."

2) "Get out of here, old man. Go tell Raymond to go shit in his hat. We're not giving you anything."