Before Ebisu became one of Tokyo's better mid- to up-market dining districts, it was known for one thing only: ramen. There's still no shortage of options, as the map at the bottom of this sign shows. 31 noodle joints, all within a minute's walk or so from the railway station.
This billboard (inside the station) is actually advertising packaged noodles, under the name Ebisu Ramen. Maybe the idea of including the map was to head off charges that it's expropriating the Ebisu "brand" for its own profit.
Whatever, I do know that it makes me hungry when I scan it as I wait to transfer trains. And that it doesn't seem to list my favourite ramenya of all in the neighbourhood.
PS: click the photo to see the map in better detail...