There are 2 books by Celsus O'Brien on BookOrb. A strong starting point is Perfect contrition in theory and practice (1952). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Showing 1 of 2 titles.
Frequently asked questions
How many books has Celsus O'Brien written?
BookOrb lists 2 books by Celsus O'Brien.
Where should I start with Celsus O'Brien?
A good starting point is Perfect contrition in theory and practice (1952).
What is the Celsus O'Brien books in order list?
In publication order: 1. Perfect contrition in theory and practice (1952).