Abstract
I distinguish among a range of distinct representational devices, which I call "frames", all of which have the function of providing a perspective on a subject: an overarching intuitive principle or for noticing, explaining, and responding to it. Starting with Max Black's metaphor of metaphor as etched lines on smoked glass, I explain what makes frames in general powerful cognitive tools. I distinguish metaphor from some of its close cousins, especially telling details, just-so stories, and analogies, in ordinary cognition and communication. And I use these distinctions to illustrate different sorts of gaps that frames or models can open up between representation and reality.