When you can’t avoid giving me a difficult choice, you need to go out of your way to give me as much guidance as I need—but no more. This guidance works best when it’s Brief: The smallest amount of information that will help me Timely: Placed so I encounter it exactly when I need it Unavoidable: Formatted in a way that ensures that I’ll notice it Examples are tips adjacent to form fields, “What’s this?” links, and even tool tips.
