26 books in series

Old Man's War

Old Man's War is a 26-book series with 26 primary works first released in 2005 with contributions by John Scalzi.

Old Man's War
Questions for a Soldier
The Ghost Brigades
The Last Colony
Zoe's Tale
After the Coup
The Human Division
The B-Team
Walk the Plank
We Only Need the Heads
A Voice in the Wilderness
Tales From the Clarke
The Back Channel
The Dog King
The Sound of Rebellion
The Observers
This Must Be the Place
A Problem of Proportion
The Gentle Art of Cracking Heads
Earth Below, Sky Above
The Human Division Extras
The End of All Things
Cover 0

The Life of the Mind

This Hollow Union
Can Long Endure
Cover 6

To Stand or Fall