This beautiful book celebrates the discovery of the hearing organ by the Italian anatomist Alfonso Corti in 1851. He first described the microscopic anatomy of the organ that contains the cellular receptors that transduce and carry airborne vibrations into electric signals to the auditory nerve and brain. Already by then, and still today, this organ was and is regarded as the most difficult of the organs in the human body to study. Indeed, it is a stealthy and miniscule organ surrounded by the hardest bone in the body. Since his discovery, researchers have continued to fascinate over this complex and gracile organ.