I really enjoyed reading this book! The reality behind the cloak-and-dagger work of CIA work is revealed by Tony Mendez in this book. I found it to be VERY fascinating, and worth reading. How the 6 US diplomats escaped from Iran when the American Embassy was taken over is explained in this book. How informants are managed and extracted from various countries is also explained. Have you read "The Hunt for Red October"? Well, it seems that Tom Clancy must have known some real details, because it meshes and matches with what Mendez speaks about.The most fascinating aspect of the book to me is that Mendez had a friend in the movie makeup / special effects industry. Mendez asked for some disguise help from his Hollywood friend, and then the Hollywood friend used some of the techniques in subsequent movies! The real name of the Hollywood friend is not supplied, but it would be fascinating to know and then watch the movies. Of course not all the details are shared or spelled out in detail, and many of the disguise methods are still classified. But to read about the CIA during the 70's and 80's is worth the time with this book.I find myself wanting to read "Agent Zigzag" again, as I remember how the British spy handlers managed Eddie Chapman. Even though there is always the "gadget" aspect of this kind of work, the one-on-one human work is also important and critical.