Mind-bending

The Long Way to a Small, Angry Planet

Becky Chambers

The Three-Body Problem

Liu Cixin

Old Man's War

John Scalzi

A Fire Upon the Deep

Vernor Vinge

The Hitchhiker's Guide to the Galaxy

Douglas Adams

The Left Hand of Darkness

Ursula K. Le Guin

Ancillary Justice

Ann Leckie

Ender's Game

Orson Scott Card

Neuromancer

William Gibson

Foundation

Isaac Asimov

Dune

Frank Herbert

Klara and the Sun

Kazuo Ishiguro

A Psalm for the Wild-Built

Becky Chambers

Slaughterhouse-Five

Kurt Vonnegut

The Stranger

Albert Camus