There are 1 book by Gary W. O'Brien on BookOrb. A strong starting point is Harrington - a Screenplay (2021). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Frequently asked questions
How many books has Gary W. O'Brien written?
BookOrb lists 1 book by Gary W. O'Brien.
Where should I start with Gary W. O'Brien?
A good starting point is Harrington - a Screenplay (2021).
What is the Gary W. O'Brien books in order list?
In publication order: 1. Harrington - a Screenplay (2021).