Series
The history of Middle-earth -- 8.
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.
1 book here · 1990
Publication order
This is publication order — nobody has confirmed a different reading order for this one yet.
—
The War of the Ring
1990 · J.R.R. Tolkien