The auditory system is a complex network responsible for converting sound into electrical signals that the brain can interpret, allowing us to perceive and understand the world through sound. However, when parts of this system, particularly the auditory nerve, are damaged or nonfunctional, hearing can be impaired or lost entirely. The activation of the auditory nerve is crucial in overcoming hearing loss and restoring auditory perception. This book explores the various methods employed to activate the auditory nerve, from traditional techniques to cutting-edge innovations, offering insight into how these methods are advancing the field of auditory science and improving the lives of those with hearing impairments.