The book "Dominion Observatory in Victoria, British Columbia" by John Stanley Plaskett is an important document in the history of astronomical research in Canada. John Stanley Plaskett was an outstanding Canadian astrophysicist who made significant contributions to the development of astronomy. In his book, he describes the formation and development of the Dominion Observatory in Victoria, British Columbia, which became one of the leading astronomical institutions in Canada. It reveals the history of the establishment of the observatory, its main tasks, achievements and contribution to science. The book contains unique materials, photographs and descriptions of the observatory's equipment, making it an important source for understanding the development of astronomy in Canada. This is a must-read for anyone interested in the history of science and astronomy.