When deciding which links to click on the web, users choose those with the highest information scent — which is a mix of cues that they get from the link label, the context in which the link is shown, and their prior experiences.| Nielsen Norman Group
Interactive elements must be at least 1cm × 1cm (0.4in × 0.4in) to support adequate selection time and prevent fat-finger errors.| Nielsen Norman Group
Large, rectangular menus group navigation options to eliminate scrolling and use typography, icons, and tooltips to explain users' choices.| Nielsen Norman Group