Few people understand the roots of US intelligence and crytology as well as Dr. David Kahn. His biography of Herbert O. Yardley is a tribute to an energetic pioneer of modern intelligence, an intelligence hero of the Great War and a struggling Depression-era author and reluctant contractor. It's time that the Intelligence Community extend its corporate memory beyond Wild Bill Donovan and embrace Herbert O. Yardley, whose energy and foresight paved the way for NSA in particular, and for The Community in general. His personal and professional stories should be heard and digested by his successors, who, it is presumed, would weed out a workaholic Average Joe of Yardley's earthly vices with a quick Life Style Poly. No one knows Yardley like Kahn, and every American should get to know Herbert Yardley...