Illustration made using mixed technique on grey cardboard about the chemist and physicist Enrique Moles’ (1883-1953) work. He researched about determining elements’ atomic weight. During Spanish Civil War, he was general director of gunpowder and explosives for the republican government. Once war ended, he was exiled to France and jailed on his return to Spain in 1941. These three fundamental facts on his life determined this illustration’s essence. When finalized the fight was exiled in France, and to its return to Spain in 1941 was imprisoned. These three fundamental facts in his biography have been the elements that have determined the essence of the portrait.