Encyclopedia of Espionage, Intelligence and Security:
Kim Philby (right) shown here following the shelling of his vehicle during the Spanish Civil War, was a member of the Communist Party while at Cambridge University, where he recruited and led a ring of spies for the Soviet Union.
This is one of the most remarkable photographs I've seen. The exchange between Philby and his interlocutor, the man looking at the camera, the mysterious blond man with his back turned... energy and character just pours off of it. It leaves me begging to know more.