The Long Earth by Terry Pratchett & Stephen Baxter

When humanity discovers countless parallel Earths, pioneers step sideways into boundless frontiers—where wonder and danger multiply with every world. The Long Earth charts bold expeditions, evolving societies, and the dizzying question of what it means to be human when horizons never end.

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Love The Long Earth but unsure what to read next?

These picks are popular with readers who enjoyed this book. Possible spoilers below.

In The Long Earth, did you enjoy a goal-driven quest to explore and settle new worlds?

Red Mars by Kim Stanley Robinson

If you were captivated by Joshua and Lobsang's ambitious journey across countless parallel Earths, you'll be drawn in by the pioneering mission to colonize Mars in Red Mars. Follow a diverse team of scientists and engineers as they tackle the monumental challenges of terraforming a new planet, driven by a shared vision and the obstacles that threaten to tear them apart.

In The Long Earth, did you enjoy a large, varied cast tackling cosmic mysteries?

Contact by Carl Sagan

If you enjoyed how The Long Earth followed an ensemble of explorers—each bringing their own perspectives and expertise—Contact will resonate with you. Ellie Arroway and her international team grapple with the implications of first contact, blending scientific inquiry, political tension, and deeply personal stories.

In The Long Earth, did you enjoy vast, imaginative exploration across time and realities?

Diaspora by Greg Egan

If the sweeping, multiverse-spanning adventure of The Long Earth captured your imagination, Diaspora will dazzle you with its epic journey through space, time, and alternate realities. Follow post-human entities as they embark on a quest that spans entire universes, challenging the very boundaries of existence.

In The Long Earth, did you enjoy a richly detailed and inventive exploration of alternate realities?

Permutation City by Greg Egan

If you loved the intricate, speculative worldbuilding behind the infinite 'stepped' Earths, Permutation City offers a mind-bending look at digital universes and simulated realities. Dive into a story where the nature of existence is questioned, and worlds are constructed with as much detail and imagination as the Long Earth itself.

In The Long Earth, did you enjoy thoughtful exploration of existence, consciousness, and what it means to be human?

Solaris by Stanisław Lem

If the philosophical questions raised by discovering endless Earths intrigued you, Solaris will engage you with its profound meditation on human understanding. As Kris Kelvin confronts the mysteries of the sentient planet Solaris, you’ll be drawn into a story that challenges the limits of perception and the nature of reality itself.