I loved reading some of these stories of people whose senses are misfiring in some way. The author gives a great breakdown of how the senses work from a neurological standpoint, and how easy it is for the senses to break down. My one quibble was that the title gave me the impression that there would be more discussion of synesthesia, and that part was limited to a very small section. Still, I learned a lot that I'd never thought of before.