In contrast with pictures, animations can show temporal change "directly" (rather than having to indicate it indirectly using auxiliary markings such as arrows and motion lines). Using animations instead of static graphics removes the need for these added markings so that displays can be not only simpler and less cluttered, but also more vivid, engaging, and more intuitively comprehended. In addition, the learner does not have to interpret the auxiliary markings and try to infer the changes that they summarise. Such interpretation and inference may demand a level of graphicacy skills that the learner does not possess. With animated depictions, information about the changes involved is available to be read straight from the display without the learner needing to perform mental animation. It's a bit of an exaggeration, but it's more like being kissed instead of reading about a kiss.