from a 2009 interview in the nytimes; found on Edward Tufte's excellent blog.

Q. What’s it like to be in a meeting run by Steve Ballmer?

A. I’ve changed that, really in the last couple years. The mode of Microsoft meetings used to be: You come with something we haven’t seen in a slide deck or presentation. You deliver the presentation. You probably take what I will call “the long and winding road.” You take the listener through your path of discovery and exploration, and you arrive at a conclusion.

That’s kind of the way I used to like to do it, and the way Bill [Gates] used to kind of like to do it. And it seemed like the best way to do it, because if you went to the conclusion first, you’d get: “What about this? Have you thought about this?” So people naturally tried to tell you all the things that supported the decision, and then tell you the decision.

I decided that’s not what I want to do anymore. I don’t think it’s productive. I don’t think it’s efficient. I get impatient. So most meetings nowadays, you send me the materials and I read them in advance. And I can come in and say: “I’ve got the following four questions. Please don’t present the deck.” That lets us go, whether they’ve organized it that way or not, to the recommendation. And if I have questions about the long and winding road and the data and the supporting evidence, I can ask them. But it gives us greater focus.

i am not enthusiastic about powerpoint, though my reasons are an admittedly weak combination of stubbornness and blind adherence to Tufte's critiques, which i've found very compelling.