This volume serves as a comprehensive liturgical record of the Sarum Rite, the primary form of worship used in medieval England prior to the Reformation. The text functions as a primary source document, preserving the specific prayers, chants, and rubrics that governed the ecclesiastical life of the Salisbury diocese. By documenting these rites, the work provides a window into the theological and ritualistic framework that defined Catholic practice in the British Isles for centuries.

Scholars and historians view this text as a foundational resource for understanding the evolution of Western liturgy and the specific traditions of the English Church. Readers often note the academic density of the prose and the specialized nature of the content, which is primarily intended for researchers and theologians.