| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| All About the Angels | 978-0-89555-388-1 | 1991 | Paul O'Sullivan O.P. |
| An Easy Way To Become A Saint | 978-0-89555-398-0 | 1993 | " |
| The Holy Ghost, Our Greatest Friend: He Who Loves Us Best | 978-0-89555-448-2 | 2009 | " |
| The Secret of Confession: Including the Wonders of Confession | 978-0-89555-459-8 | 2010 | " |
| The Wonders of the Holy Name | 978-0-89555-490-1 | 1993 | " |
| The Wonders of the Mass | 978-0-89555-491-8 | 1993 | " |
O's · O'Sullivan · P O'Sullivan · P S · P. Sullivan · Paul O. · Paul O'Sullivan · Paul S. · Paul Sullivan · S.O.