This work investigates the developmental history and operational evolution of the Royal Australian Navy through the lens of its primary naval vessels. John Bastock provides a comprehensive technical and historical account of the ships that have served under the Australian flag, drawing upon naval records and maritime archives to document the fleet's growth. The text serves as a reference framework for understanding the strategic shifts in Australian defense policy as reflected in the procurement and deployment of its warships.

The subject matter points to a specialized, archival-focused text intended for maritime historians and naval enthusiasts. The framing suggests a dense, data-rich resource that prioritizes technical accuracy and historical documentation over narrative prose.