Here is a list of actors profiled in the book:
Walter Barnes, William Berger, Rory Calhoun, Clint Eastwood, James Coburn, Chuck Connors, Jack Elam, Michael Forest, Franco and Ciccio, Mickey Hargitay, Richard Harrison, John Ireland, Klaus Kinski, Mikey Knox, Guy Madison, Gordon Mitchell, Wayde Preston, Dean Reed, Gilbert Roland, Mark Stevens, Lee Van Cleef, Larry Ward, Women of Spaghetti Westerns
Kinda wierd huh? The majority of these guys are not even particularly known for their SWs, was Rory Calhoun ever in an SW?
Among the SW notables that that the book does not devote chapters to are Garko, Gemma, Steffen, Hill and Spencer, Hilton, Milian, Volonte, Nero, Brega, Fajardo, Wallach, Wolf.
This book hardly qualifies as a "SW Book" although it may still have some interesting information regarding those that are covered so I'll hold out on discounting this book completely.