The Time Traders was a series of science fiction works by AndreNorton, with the four original books from the late 50's and early 60's, and three additional books from 1994, 1999 and 2002.

It features a band of time travelling agents, working for the US Government, initially in an effort to investigate Mother Russia's sudden rise in technology. It evolves into a book series featuring myth arcs, intrepid merchants, and exploring ancient civilizations, both human and alien.

The books are:

* ''The Time Traders'' (1958)
* ''Galactic Derelict'' (1959)
* ''The Defiant Agents'' (1962)
* ''Key Out Of Time'' (1963)
* ''Firehand'' (1994)
* ''Echoes in Time'' (1999)
* ''Atlantis Endgame'' (2002)

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The series contains examples of:

* AbortedArc: Due to {{AuthorExistenceFailure}}, the overarching Myth Arc that the series was building up will never be complete.
* AdvancedAncientAcropolis: The first planet the group lands on in Galactic Derelict. It is a large, possibly planetwide city, but it is mostly in ruins and abandoned.
** Again, for the last planet they land on in Galactic Derelict, [[spoiler:before their return trip home]]. What are the remains of an ancient spaceport with obvious signs of technology, and multiple cultures, but only remains of cultures and sentient creatures, until Echoes in Time, when[[spoiler:they go back to its past, and revealed to be a highly integrated society with multiple sentient beings and tight-knit, evolved culture.]].
* DerelictGraveyard
* HeelFaceTurn: [[spoiler:The Baldies]], in Atlantis Endgame.
* ImportedAlienPhlebotinum: The humans discover the alien spaceships and their corresponding datatapes, but are never fully understood.
* IntrepidMerchant: The group was this in the first book; merchants can go anywhere and no one would blink.
* LaserGuidedAmnesia: In The Defiant Agents.
* LostTechnology: Scattered nicely throughout the series, especially on other, alien, planets.
* MakeTheBearAngryAgain: Up until the new series of books, which were published past the USSR.
* MythArc: The series enemies, the Baldies, and their involvement with humanity, are built up over the series.
* PsychicPowers