how to read a chess board.

I see stuff like this all the time when playing chess: ah3, jk5 or something of the sort. Does anyone know of a good tutorial online that teaches you how to read the board this way.

I think if you read this thread, you will get all the information you need. Here is the link:
http://www.redhotpawn.com/board/showthread.php?threadid=15126

Indeed. That was extremely helpful. Thank you.