When we think of spies and their activities, we imagine trench coats, hidden cameras, and tense exchanges in safehouses. Hollywood has given us the daring adventures of James Bond and Jason Bourne, along with the clever trickery of films such as Argo. But behind the cinematic flair lies a quieter, more subtle reality: espionage often depends less on gadgets, weapons and car chases than on the delicate art of deception, an art rooted in psychology, perception, and human behaviour. This is the world explored by Dr. Rafael Lenzi, in a work developed at the Centre de Recherches Sémiotiques in Limoges, France. His study of Cold War espionage, drawing on declassified CIA manuals and philosophical theories of perception, reveals how deception is not just about tricking the eye, but about shaping the mind. In other words, spying succeeds not when someone fails to see, but when they see exactly what they expect to see, and therefore overlook the trickery in front of them.