Can reality be measurably different inside different heads? Synaesthesia teaches us that the answer is yes, and no one is better positioned than Simner to tell the story of this remarkable phenomenon. She and her colleagues have helmed the cutting edge of this research for decades, and she has now penned a wonderful book that deftly balances brevity with depth. (Dr David Eagleman, neuroscientist at Stanford University.

Can you taste words, feel flavours as a shape, or hear colors? If so you may well have synaesthesia, a neurological condition that gives rise to a 'merging of the senses'. 

This Very Short Introduction describes synaesthesia's many forms, and delves into the underlying neuroscience. Explaining the scientific basis for synaesthesia, Julia Simner considers how we can measure the effects synaesthesia has on the everyday lives of people living with it. Exploring the fascinating stories of different synaesthetes' experiences of the world, she also discusses the documented links between synaesthesia, childhood development, memory, personality, and artistic creativity, and the potential limitations synaesthesia might impose.

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