Web Designer Samantha Warren posted a great brief treatise on using typographic hierarchy to lead users through a web page. It’s always interesting to see how print design “rules” can be used effectively online.
Because the web is interactive, establishing a visual hierarchy through typography is essential in guiding the user to the information they are seeking online. Visual Hierarchy is the arrangement of elements in a gradual series in order of importance, enticing users to interact with a web site through visual cues. Typography online is less an element and more an interface, where characteristics such as size, weight, style, color, and location help the user to navigate the site through emphasis.