What book do I have to study o prepare for hearing aid dispenser writing exam?

To prepare for the hearing aid dispenser writing exam, you should focus on studying "The Hearing Aid Handbook" by Dillon, along with relevant state regulations and guidelines regarding hearing aid dispensing. Additionally, consider reviewing "Introduction to Audiology" by Gianopoulos, which provides foundational knowledge on audiology principles. It's also beneficial to familiarize yourself with the latest advancements in hearing aid technology and patient care practices.