Keep it simple: In general, interfaces should use simple geometric forms, minimal contours, and a restricted color palette comprised primarily of less-saturated or neutral colors balanced with a few high contrast accent colors that emphasize important information. Typography should not vary widely in an interface.
Alan CooperWe don't fight about music. We don't fight about artistic direction. The things like that we could fight about, we really don't. We are pretty lucky for that.
Alan CooperYou can get spiritual things out of books and stories and they have nothing to do with religion.
Alan CooperIronically, the thing that will likely make the least improvement in the ease of use of software-based products is new technology. There is little difference technically between a complicated, confusing program and a simple, fun, and powerful product.
Alan CooperRun for your lives-the computers are invading. Awesomely powerful computers tackling ever more important tasks with awkward, old-fashioned interfaces. As these machines leak into every corner of our lives, they will annoy us, infuriate us, and even kill a few of us. In turn, we will be tempted to kill our computers, but we won't dare because we are already utterly, irreversibly dependent on these hopeful monsters that make modern life possible.
Alan Cooper