Sarah Palin's image is everywhere as she launches a highly-anticipated book tour this week, but the former Alaska governor is unhappy with at least one media organization's depiction of her.Palin took aim at Newsweek's eye-catching cover this week that shows the former vice presidential candidate in her running outfit - an image that was apparently lifted from a Runner's World photo shoot months ago. Writing on her Facebook page Monday night, Palin said the depiction is flat out "sexist, and oh-so-expected.""The choice of photo for the cover of this week's Newsweek is unfortunate. When it comes to Sarah Palin, this 'news' magazine has relished focusing on the irrelevant rather than the relevant," Palin wrote. "The out-of-context Newsweek approach is sexist, and oh-so-expected by now.""If anyone can learn anything from it: it shows why you shouldn't judge a book by its cover, gender, or color of skin. The media will do anything to draw attention - even if out of context," Palin also said.