I am looking for as much info as possible regarding how to get from Athens International Airport to the Athens Railway Station. Thanks!!
If you got a lot of luggage that you can't carry on public transportation then take a taxi.
If not and you are good about mapping out stuff than try your search in Google maps or Rio2rome.
It is complicated but with time you will figure it out,
Otherwise take the taxi as it takes more or less 35 minutes
or
http://www.visitgreece.gr/en/travelling_in_greece/from_the_airport_to_athens