The book "List of Post Offices in Canada, with Names of Postmasters ... 1864" is an important document containing information about post offices in Canada at the beginning of 1864. Produced by the Canadian Post Office, the book lists post offices along with the names of the postmasters who worked at them during this period. This publication is useful not only for people interested in the history of the postal service, but also for researchers, genealogists and historians. It allows a better understanding of how the postal system functioned in Canada in the second half of the 19th century. "List of Post Offices in Canada, with Names of Postmasters ... 1864" is a valuable source of information about the socio-economic context of the time, as well as the methods of communication between cities and settlements in Canada in the 19th century.