FWIW,
@cliveh added his reference to HCB after I started quoting his post.
An artist statement would be much less important for HCB than it would be for someone not well known.
It's one thing to briefly state what motivates your work and I stipulate that this can be a useful marketing tool.
But the statement shouldn't be some art school pontification on visual intersectionality of postmodern, poststructuralist feminist garbage can theory. Some of this stuff is mind bogglingly self important.
But I do think the work should mostly speak for itself (or not, as the case may be). To me, if you have to read the artist's statement, it's analogous to telling a joke: Humor explained isn't funny.
I don't exhibit publicly (well, almost never), but when I show my work to those I know/privately, I never explain what I am trying to accomplish unless they ask
after they have looked at it. I get the inevitable "What kind of camera do you use?" as the most common question. Right after that I get, "How do you
see these things?" (I do a lot of abstracts.)
I don't mind answering these and other questions about how I work, the equipment, the darkroom or what have you, I just don't want them to know this
first. I work 99.9999% only for myself. When I do show the work to others, I'm interested in how they respond and to which images, and how that differs from my own response. I am most gratified when the viewer's sensibilities match my own. Mind you, I'm not working with them in mind, but if an "outsider" gets what I am doing, it means I have something in common with my fellow man, and have not yet gone stark raving mad ... you may see it otherwise ...