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Cover of Sirius by Olaf Stapledon
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Sirius

Olaf Stapledon

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Similar in themes

These books are ranked using the themes labels extracted for Sirius.

Themes labels used: alienation, otherness, identity, belonging, consciousness, humanity, nature versus nurture, intelligence, love, loneliness, religion, spirit, society and prejudice, ethics of experimentation, war, fear of the unknown, community, soul, meaning of life, free will, self-worth, difference, empathy, bigotry, disability

Focused on “privacy” where exact label matches exist.

This does not mean the books share the same plot, setting, quality, or difficulty. It means their themes embeddings are close.

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Cover of The Similars by Rebecca Hanover

The Similars

Rebecca Hanover · 2019 · The Similars

At an elite boarding school, a grieving teen confronts a clone of her dead best friend and a web of secrets.

Semantic match: ranked by themes

Distance: 0.0947

Cover of Gladiator by Philip Wylie

Gladiator

Philip Wylie · 1930

A super-strong man’s life unfolds as he searches for belonging while society fears the gift that sets him apart.

Semantic match: ranked by themes

Distance: 0.0710

Cover of Lágrimas en la lluvia by Rosa Montero

Lágrimas en la lluvia

Rosa Montero · 2011 · Bruna Husky

A replicant detective in future Madrid investigates violent deaths while uncovering a conspiracy that threatens her kind.

Semantic match: ranked by themes

Distance: 0.1030

Cover of Frankenstein by Mary Wollstonecraft Shelley

Frankenstein

Mary Wollstonecraft Shelley · 2017

A scientist’s pursuit of life beyond death unleashes a tragic chain of responsibility, rejection, and ruin.

Semantic match: ranked by themes

Distance: 0.0775

Cover of I Think I'm in Love with an Alien by Ann Aguirre

I Think I'm in Love with an Alien

Ann Aguirre · 2025

A stranded alien and a space-obsessed human fall for each other after their online friend group meets at a sci-fi con.

Semantic match: ranked by themes

Distance: 0.1103

Cover of Vaster Than Empires and More Slow by Ursula K. Le Guin

Vaster Than Empires and More Slow

Ursula K. Le Guin · The Hainish Cycle

A misfit survey crew meets a forest world whose plant-life seems to feel fear and think as one.

Semantic match: ranked by themes

Distance: 0.0812

Cover of More Than Human by Theodore Sturgeon

More Than Human

Theodore Sturgeon · 1979

Misfit children with psychic gifts form a shared consciousness and must decide what power, identity, and humanity mean.

Semantic match: ranked by themes

Distance: 0.0880

Cover of エルフェンリート 1 [Elfen Lied 1] by Lynn Okamoto

エルフェンリート 1 [Elfen Lied 1]

Lynn Okamoto, 岡本倫 · 2002 · Elfen Lied

An escaped mutant with split identities is taken in by strangers while the government hunts her down.

Semantic match: ranked by themes

Distance: 0.0940

Cover of Absolute Martian Manhunter (2025-) #1 by Deniz Camp

Absolute Martian Manhunter (2025-) #1

Deniz Camp · 2025 · Absolute Martian Manhunter (2025)

An FBI agent survives a bombing and begins experiencing a reality-bending psychic shift that blurs human and alien identity.

Why this is here

Themes labels: alienation · human nature · identity · sanity · perception · society · prejudice · violence · investigation · selfhood · integration · morality

Semantic match: ranked by themes

Distance: 0.0941

Cover of The Pretender by K.A. Applegate

The Pretender

K.A. Applegate, Katherine Applegate · 1998 · Animorphs

A hawk-bodied teen faces a family trap, a rescue mission, and a shattering truth about who he really is.

Semantic match: ranked by themes

Distance: 0.0944

Cover of The Dreaming Jewels by Theodore Sturgeon

The Dreaming Jewels

Theodore Sturgeon, Теодор Стърджън · 1995

An abused boy flees to a traveling carnival and uncovers a strange lifeform, hidden powers, and the meaning of being human.

Semantic match: ranked by themes

Distance: 0.0954