Clear, structured, and lively, the book and its intrigues are fascinating. Jeffreys-Jones humanizes all involved, revealing the motivations of spies and government investigators alike. The Nazi Spy Ring is an engaging account of interwar espionage that played out in newspapers across the world.

Jeffreys-Jones packs the narrative with fine-grained details and memorable character sketches. Espionage buffs will want to take a look.

This is an entertaining tale that doubles as an important work of scholarship.

Simply stated, The Nazi Spy Ring in America: Hitler's Agents, the FBI, and the Case That Stirred the Nation is an inherently fascinating and impressively documented history told in the kind of narrative storytelling style that will engage and hold the reader's rapt attention from beginning to end.

Careful documentation ... lends authenticity to a fast-paced plot: Jeffreys-Jones is a thorough researcher who plumbed sources from New York City court records to Gestapo files in Germany to write a book that I was sorry to see end.

The Nazi Spy Ring in America brings many scenes to life with novelistic detail

A very good read, suitable for all audiences.

The Nazi Spy Ring in America will be of interest to anyone interested in the Abwehr or espionage. Rhodri Jeffreys-Jones tells a complex story well.

This is an excellent read: informative, intriguing, entertaining, and suspenseful throughout.

By breathing new life into this often-ignored spy story and its implications, Jeffreys-Jones provides readers an important reminder that although the United States today faces different adversaries, seeing the actions of any nation in a clear, honest light is vital to avoid repeating the failures of the 1930s and once-again paying the disastrously high cost of fixing them.