I found pictures of many Russian KGB cameras, sets of camouflages and attachments for them, and how they were used in the ways I never think before. On other hands book presented Fotosniper kit as a spy/surveillance camera too . But for such low price on Amazon it worth to get it, just for those pictures.
I like this book too, for the KGB cameras and photos. The rest of the book is interesting also. Many folks have told Keith Melton that the Photosniper was not a surveillance camera (although may have been used by the military or border guards occasionally). You can get it on Ebay really cheap: