To be effective, advertisements need to capture attention, and to be both emotionally engaging and persuasive. In order to achieve these aims, many advertisements make use of metaphor as it is a particularly noticeable, persuasive and powerful form of communication. Studies have shown that metaphor is more effective than literal language, and visual metaphors have been found to be more effective than verbal metaphors. Additionally, brands using metaphors have been found to be generally perceived to be more sophisticated and exciting, but also less 'sincere' and less 'competent', than brands using literal words and pictures.