[dba-Tech] Bar Codes & Fonts

Crawling out from under a rock for a 2 part question:

1) Does anyone know what kind of Bar Code is used for ISBN numbers on
the back of books?
2) Anyone know where one could find a free version of this for windows
on the 'net?

A friend of mine is embarking on self publishing a couple of books and
the printer want's $40 (AUD) a book to create these ISBN barcodes for
her books.

I figure that since we have a ton of smart folks that know everything
here, I'd ask you guys and ladies.

Thanks now I'm crawling back under my rock. Too damn bright out here ;)

-- 
Bryan Carbonnell - carbonnb at gmail.com
Life's journey is not to arrive at the grave safely in a well
preserved body, but rather to skid in sideways, totally worn out,
shouting "What a great ride!"