Synaesthesia is a condition where one sense elicit others. Part I is about the the synaesthetic perception. http://www.synaesthesia.com

Synaesthesia is a condition where one sense elicit others. Part II is about the neurological and scientific aspects. http://www.synaesthesia.com

Synaesthesia is a condition where one sense elicit others. Part III is about the prevalence and social aspects. http://www.synaesthesia.com