As stated in the Foreword of his first completed volume (Vol. III in 1946), Fr. Weller compiled his set of The Roman Ritual for the clergy "as a manual and reference" and for the laity's "interest and enthusiasm for the rites and prayers of so important a part of the liturgical books of the Church."
His indispensable 3-volume set was especially prized for its thoroughness in treating of the liturgical laws pertaining to each rite, as well as his copious and instructive commentaries.
Click below for the latest catalogues: