There are 5 books by D. M. O'Brien on BookOrb. A strong starting point is TOVPIX (1985). The bibliography below is in publication order, with series grouped in reading order.
Standalone books
Showing 1 of 5 titles.
Frequently asked questions
How many books has D. M. O'Brien written?
BookOrb lists 5 books by D. M. O'Brien.
Where should I start with D. M. O'Brien?
A good starting point is TOVPIX (1985).
What is the D. M. O'Brien books in order list?
In publication order: 1. TOVPIX (1985).