Alexander Campbell's 'General Instructions for the Guidance of Post Office Inspectors in the Dominion of Canada' offers a comprehensive overview of the postal service system in Canada during the late 19th century. Written in a clear and concise style, the book provides detailed instructions on how post office inspectors should carry out their duties, highlighting the importance of efficiency and reliability in mail delivery. Campbell's attention to detail and practical advice make this book a valuable resource for understanding the postal service operations at that time. Situating this work within the broader context of administrative manuals of the period, Campbell's book stands out for its meticulous instructions and focus on the Canadian postal system. Alexander Campbell, a renowned postal service administrator, brings his expertise to this text, drawing on his own experiences to offer valuable insights for post office inspectors. His authoritative voice and knowledge of the subject matter make this book an indispensable guide for anyone interested in the history of postal service in Canada. I highly recommend 'General Instructions for the Guidance of Post Office Inspectors in the Dominion of Canada' to scholars, historians, and enthusiasts of Canadian postal history.