I highly recommend this: http://www.edwardtufte.com/tufte/books_pp http://www.edwardtufte.com/tufte/books_pp It's too bad he hasn't released it for free, but i

I highly recommend this: http://www.edwardtufte.com/tufte/books_pp http://www.edwardtufte.com/tufte/books_pp It's too bad he hasn't released it for free, but it's highly worth reading if you do presentations.