The 14 multimedia principles helps in designing presentation slides, websites, online blogs, pictures or posters and anything associated in multimedia.
People learn better when multimedia messages are designed in ways that are consistent with how the human mind works. (The 14 Multimedia Principles). They are multimedia, modality, redundancy, spatial contiguity, temporal contiguity, coherence, interactivity, signaling, segmenting, pre-training, personalization, voice, image, and individual difference.
Each one of the principle teaches on how to promote your idea via multimedia effectively and efficiently.