Hearing impairment is an invisible disability that greatly affects the development of all aspects of the child. Hearing impairment to varying degrees leads to difficulties in children's communication and cognition, especially in receiving education. According to the International Convention on the Rights of Persons with Disabilities (CRPD), sign language is the natural language of the deaf. Deaf children have the right to be educated in sign language and need to facilitate sign language learning as well as promote language unity in the deaf community. This book provides the most basic information about deaf children, sign language, and the education of deaf children in a sign language approach. Readers will gain sympathy and understanding for deaf children and their families, as well as the importance of sign language in educating deaf children.