Paul Gordon proposes a new theory of art as synaesthetic and applies this idea to various media, including works--such as movies, illustrated books, and song lyrics--that explicitly cross over into media involving the different senses. The idea of art as synaesthetic is not, however, limited to those "cross-over" works, because even an individual poem or novel or painting calls upon different senses in creating its syn-aesthetic "meaning."

Although previous studies have often devolved into those who see an obvious connection between art and synaesthesia and those who adamantly reject such a notion, Synaesthetics furthers our understanding of synaesthesia as an important, if not essential, component of artistic expression.