There are 4 books by Thomas E. O'Brien on BookOrb. A strong starting point is Pain of Silence (2006). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Frequently asked questions
How many books has Thomas E. O'Brien written?
BookOrb lists 4 books by Thomas E. O'Brien.
Where should I start with Thomas E. O'Brien?
A good starting point is Pain of Silence (2006).
What is the Thomas E. O'Brien books in order list?
In publication order: 1. Pain of Silence (2006), 2. County Justice (2006), 3. Corporate Rough (2007), 4. Digger's Place (2008).