I have to agree with Jeff here Robin... There is very little "pivotal" work in Sherman's body of work other than her predilection for sexually disjointed "exploitation of women" imagery and even that is done, I believe, more for it's shock value than anything else. I guess in that way it does qualify as "art" in that it makes people think... but I am a firm believer that great art involves not only the artist's intellectual or emotional intent to communicate a specific message, but also a mastery of their craft. Sherman's work to me, is devoid of any "craft" beyond that of the average person on the street with a point and shoot camera or cell phone and is largely devoid of more than superficial meaning.
Face it... most "art" created by famous or favored "artists" is far more valuable simply because of "who they are" or who the "art world" thinks they are than because of the actual quality of their work. I will cite both Richard Prince AND Andy Warhol as prominent examples.
For an example of Sherman's work that I feel illustrates this last point perfectly, here is a photo that once hung in the Gagosian Gallery in Beverly Hills, CA...
Copyright - Cindy Sherman (as if anyone else would claim it as their work)
If anyone here on PF had taken and posted that photo, regardless of any deep artistic claims to some transcendental meaning... it would have been torn to shreds in PYP and it would certainly never be hung in ANY minor art gallery, much less one which also hangs Van Goghs and Picassos.
Mike