Long Earth (Stephen Baxter) Books in Order
Part ofStephen Baxter Books in OrderSee Stephen Baxter and Terry Pratchett's Long Earth books in order, with summaries, series background, and simple guidance on where to start.
Last updated: June 29, 2026
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Long Earth (Stephen Baxter) books in publication order
5 books
The Long Earth
by Stephen Baxter
2012
A cheap stepper device opens an endless chain of parallel Earths, suddenly changing migration, politics, and the meaning of frontier. Joshua Valienté and the artificial intelligence Lobsang head off to see what humanity will make of it.
The Long War
by Stephen Baxter
2013
A generation after Step Day, the new communities of the Long Earth are no longer content to stay quiet. Expansion brings conflict, new species, and the first sense that humanity can damage even infinite frontiers.
The Long Mars
by Stephen Baxter
2014
With the Long Earth in flux, Joshua and Sally discover another route outward, this time toward Mars across the parallel worlds. Exploration stays exciting, but the human complications keep multiplying.
The Long Utopia
by Stephen Baxter
2015
Far down the chain of worlds, Joshua and his companions find a green refuge that still holds danger. The book keeps asking whether endless new land really solves old human problems.
The Long Cosmos
by Stephen Baxter
2016
In the last Long Earth book, Joshua and Lobsang make their boldest journey yet. The series ends by turning its frontier story back toward the largest questions in the sky.
Long Earth (Stephen Baxter) books in chronological order
Series background & context
The Long Earth sequence is one of Stephen Baxter's most accessible collaborations, though it still carries his fondness for large consequences and open-ended horizons. The setup is irresistible: a small device lets people step sideways into a chain of near-empty parallel Earths, and the world is never the same again.
The books follow that idea outward through The Long Earth, The Long War, The Long Mars, The Long Utopia, and The Long Cosmos. Some of the pleasure comes from exploration, from finding new landscapes and strange human offshoots. Just as much comes from watching society adapt, badly and creatively, to the sudden existence of limitless room.
That is where Baxter really helps the collaboration sing.
He is very good at tracing how a speculative change affects systems as well as individuals. Here that means migration, politics, colonization, economics, and the question of whether humanity behaves any better when given a million second chances.
Joshua Valienté and Lobsang keep the sequence grounded, or as grounded as a story about infinite worlds can be. One is practical and human, the other brilliant and deeply odd. Between them, they give the books momentum and warmth. This page gathers the whole run in order and helps show where the individual novels shift from frontier adventure toward something much larger and stranger.
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