Superman has been reconstructed into various forms throughout the years and the re-imagination of the Superman symbols is part and parcel of that process.
The people at Halloween Costumes' website created an infograph that showcases the evolution of the Superman symbols in great visual detail. The illustration starts from 1938 and ends with the present symbol of Superman. The Superman symbols infograph includes every reincarnation of the Man of Steel's symbolic logo, from the comic book series to the televisions and movies incarnations. The infograph also includes tidbits about the Superman's 'S' symbol, which some Superman fans might not have known.
The evolution of Superman's symbol is an interesting facet to witness. All we need now is an infograph showcasing the evolution of Batman's symbol.