In 1997, Bella Bathurst began to go deaf. Within a few months, she had lost half her hearing, and the rest was slipping away. She wasn't just missing punchlines, she was missing most of the conversation - and all of the jokes. For the next twelve years deafness shaped her life, until, in 2009, everything changed again. Sound draws on this extraordinary experience, exploring what it is like to lose your hearing and - as Bella eventually did - to get it back, and what that teaches you about listening and silence, music and noise. She investigates the science behind deafness, hearing loss among musicians, soldiers and factory workers, sign language, and what the deaf know about these subjects that the hearing don't. If sight gives us the world, then hearing - or our ability to listen - gives us each other. But, as this engaging and intelligent examination reveals, our relationship with sound is both personal and far, far more complex than we might expect. Published in partnership with the Wellcome Collection. Wellcome Collection is a free museum and library that aims to challenge how we think and feel about health. Inspired by the medical objects and curiosities collected by Henry Wellcome, it connects science, medicine, life and art. Wellcome Collection exhibitions, events and books explore a diverse range of subjects, including consciousness, forensic medicine, emotions, sexology, identity and death. Wellcome Collection is part of Wellcome, a global charitable foundation that exists to improve health for everyone by helping great ideas to thrive, funding over 14,000 researchers and projects in more than 70 countries. wellcomecollection.org