What is kinetic typography?

"Kinetic typography refers to the art and technique of expression with animated text. Similar to the study of traditional typography of designing static typographic forms, kinetic typography focuses on understanding the effect time has on the expression of text. Kinetic typography has demonstrated the ability to add significant emotive content and appeal to expressive text, allowing some of the qualities normally found in film and the spoken word to be added to static text. Kinetic type has been widely and successfully used in film as well as in television and computer-based advertising. Perceptual psychology research on attention, reading performance, and comprehension has indicated that time-based presentation of text can be used effectively to capture and manipulate a viewer’s attention and in some cases improve overall reading performance." Taken from Johnnylee.