"Concept maps can be classified into three types: object maps, verbal maps, and spatial maps corresponding to three distinct styles of learning and communication. According to neuropsychologists Olysa Blazhenkova and Maria Kozhevnikov, object learners and communicators are found among artists and multi-media persons who process information through colorful, concrete, multi-dimensional, and multi-sensory images. The verbal style of communicating and processing of information, according to the media scholar, Marshall McLuhan, has dominated Western learning for centuries... This cognitive style is opposed to the object style and a third type, spatial style in that spatial learners, as in the case of object learners, process information non-verbally, and through images."