The book "Sign Language Among the North American Indians Compared with that of Other Nations and the Deaf. First Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1879-1880, Government Printing Office, Washington, 1881" is an important document in the study of sign languages. The author Garrick Mallery carefully compares the sign language used by a tribe of North American Indians with the sign language of other peoples, as well as with the sign language of the deaf. The book highlights the uniqueness of each sign language, shows ways of communicating through gestures and their importance in different cultures. The publication is a valuable compilation of data and analysis of sign language among different population groups and helps to better understand their ways of communication.