Crosstime Traffic books in order A series by Harry Turtledove
The Crosstime Traffic series by Harry Turtledove has 4 books, from Gunpowder Empire (Dec 2003) to The Valley-Westside War (Jul 2008). Read it in order, starting with Gunpowder Empire.
Reading order: 1 Gunpowder Empire (2003) · 2 Curious Notions (2004) · 3 The Disunited States of America (2006) · 4 The Valley-Westside War (2008)
Updated September 2026
All 4 Crosstime Traffic books in order
- 1.
Gunpowder Empire (Dec 2003)
- 2.
Curious Notions (Oct 2004)
- 3.
The Disunited States of America (Sep 2006)
- 4.
The Valley-Westside War (Jul 2008)
Crosstime Traffic FAQ
- How many Crosstime Traffic books are there?
- There are 4 Crosstime Traffic books, as of September 2026.
- What order should I read the Crosstime Traffic books in?
- In publication order, starting with Gunpowder Empire (Dec 2003): 1 Gunpowder Empire (2003) · 2 Curious Notions (2004) · 3 The Disunited States of America (2006) · 4 The Valley-Westside War (2008).
- What is the first Crosstime Traffic book?
- Gunpowder Empire (Dec 2003).
- What is the latest Crosstime Traffic book?
- The Valley-Westside War (Jul 2008).
- Is the Crosstime Traffic series finished?
- There have been no new Crosstime Traffic books since 2008.
- Did Harry Turtledove write other series?
- Yes: Worldwar, Great War, Colonization, Darkness and American Empire.
More series by Harry Turtledove
All Harry Turtledove booksWorldwar
5 books
Great War
3 books
Colonization
3 books
Darkness
3 books
American Empire
3 books
Settling Accounts
4 books
The War That Came Early
6 books
Sources: series order and dates from Wikidata and Open Library. Last updated September 2026.