"The Divine Office: A Study of the Roman Breviary" by Edward J. Quigley is a detailed theological manual written in the early 20th century. This work focuses on the structure, history, and significance of the Roman Breviary, a critical component of Catholic liturgy and daily prayer, enhancing the understanding of its components and roles for both priests and laypersons. The opening of the text introduces the author’s intention to provide an instructional guide that promotes a deeper appreciation for the Breviary's importance in daily spiritual practice. Quigley emphasizes that understanding the Breviary is vital for priests, particularly in fostering devout prayer habits. He outlines his hope that the text will serve as an accessible resource for students and clergy, detailing its contents and practical usage in the context of Christian worship. The early chapters provide foundational knowledge about the Breviary's development, its various components, and the intended structure of its prayers, setting the stage for a comprehensive study of this rich liturgical tradition. (This is an automatically generated summary.)