Crosstime Traffic

The *Crosstime Traffic* Series
	First edition dust-jacket of Gunpowder Empire
	Gunpowder Empire (2003); Curious Notions (2004); In High Places (2005); The Disunited States of America (2006); The Gladiator (2007); The Valley-Westside War (2008);
Author	Harry Turtledove
Country	United States
Language	English
Genre	Science fiction
Publisher	Tor Books
Published	2003-2008
Media type	Print

Crosstime Traffic is a series of books by Harry Turtledove.

The central premise of the stories is an Earth that has discovered access to alternate universes where history proceeded differently. "Crosstime Traffic" is the name of the company with a global monopoly on the technology.

First edition dust-jacket of Gunpowder Empire
Gunpowder Empire (2003) Curious Notions (2004) In High Places (2005) The Disunited States of America (2006) The Gladiator (2007) The Valley-Westside War (2008)
Author	Harry Turtledove
Country	United States
Language	English
Genre	Science fiction
Publisher	Tor Books
Published	2003-2008
Media type	Print