The knowledge of pictograms and signs that appears at the public transportation will help you find your destination even without reading Japanese. Here are the signs which are mainly used at train stations.
Signs to indicate a station
Pictogram of a train
Entrance of a subway station
Entrance of a JR line station
Signs inside a station
Pictograms at a ticket office
Guide signs to indicate directions to platform
Guide signs to indicate transfers
Guide signs to indicate directions to exit
Direction boards at a platform
Electrical sign board
Station name plate
Useful signs at a station
Pictograms at a bus stop and taxi stand
*This information is from the time of this article's publication.