Series
Diablo: The Sin War
We don't know whether this one is finished.
Nobody has confirmed the status of this series yet. That's a gap in our data, not a verdict on the books.
2 books here · 2006–2007
Publication order
This is publication order — nobody has confirmed a different reading order for this one yet.
1
Birthright
2006 · Richard A. Knaak
3
Diablo
2007 · Richard A. Knaak