Superman Comic book help

[Ainast]

Ok I am wondering how to tell if a Superman Comic is a first edition and not a reprint. I have a copy of Superman: Red Son and 95% of the Death, Funeral, Reign of superman Comics. Is there a quick way to determine this?

[Lazlo Panaflex]

Usually on the lower right hand corner of the splash page near the copyright credits it would say SECOND PRINTING, if not then you have first editions.