"Donald Hamilton has brought to the spy novel the authentic hard realism of Dashiell Hammett; and his stories are as compelling, and probably as close to the sordid truth of espionage, as any now being told."-New York Times
"This series by Donald Hamilton is the top-ranking American secret agent fare...Good writing, slick plotting and stimulating characters, all tartly flavored with wit."-Book Week
"With Matt Helm, Donald Hamilton helped start the spy adventure genre. I welcome the reissue of these books so that readers can experience this mythic hero."-David Morrell, creator of Rambo and New York Times bestselling author of Murder as Fine Art
"Fast, tightly written, brutal, and very good..."-Milwaukee Journal