Can someone please tell me what style of painting this is?

I really want to learn how to do this style of painting but I do not know what it is called anything whatsoever would be helpful!! http://vishinskydesigns.files.wordpress.com/2010/04/lena-black-and-white-portrait-by-vishinsky.jpg?w=580

2013-04-20T17:09:42Z

To view the link copy and paste it into your browser!! Thank you!

?2013-04-20T17:36:09Z

It looks like a photo that was posterized in Photoshop. It doesn't appear to be a painting. Or it could be a silkscreen. No visible brushstrokes, no color - a graphic.