Every week, he gathered his executive team to kick around ideas without a formal agenda. Every Wednesday afternoon, he did the same with Apple's marketing and advertising team. No presentations. No slide shows. No formal agendas. As Isaacson quotes Jobs: "I hate the way people use slide presentations instead of thinking. People would confront a problem by creating a presentation. I wanted them to engage, to hash things out at the table, rather than show a bunch of slides. People who know what they're talking about don't need PowerPoint."