Contact by Carl Sagan

Published 1985 · 432 pages · 122,314 words · about 8 hours at an average pace · Science Fiction

How hard is Contact to read?

Contact scores 40 out of 100 for difficulty on ReadingRate, making it moderately challenging. The score is a weighted composite of nine measures: four of how hard the prose is to parse, five of how hard the meaning is to extract.

Vocabulary: 52 out of 100
Sagan weaves specialized scientific vocabulary throughout — masers, lanthanide impurities, interferometers, stimulated emission, spectral types, cetology-level detail about radio astronomy — without ever letting jargon obstruct narrative flow. Technical terms appear every few pages but are almost always clarified in surrounding prose. The baseline literary register is clear and contemporary, placing the book closer to Gatsby than Gravity's Rainbow.
Sentence structure: 38 out of 100
Sentences are controlled, direct, and predominantly declarative. Sagan favors the plain periodic sentence — subject, verb, object — with occasional subordination for scientific explanation. Long passages of scientific exposition break into manageable clauses. The prose never approaches Jamesian hypotaxis or Faulknerian run-ons; it reads closer to Orwell than Proust.
Abstraction: 55 out of 100
The novel moves fluidly between concrete biographical scenes and passages of genuine scientific and philosophical abstraction — discussions of transcendental numbers, information theory, the Drake equation, and the nature of cosmic intelligence. These digressions are anchored to character: Ellie's wonder at pi, her debate with Valerian about SETI. The abstraction level is elevated above plot-driven genre fiction but never approaches Waiting for Godot's existential pure abstraction.
Information density: 62 out of 100
Each chapter carries substantial scientific content — the physics of masers, radio telescope engineering, the hydrogen line, pulsar timing, Big Bang background radiation — alongside character development and political context (Vietnam War, Cold War space race, gender dynamics in 1960s academia). Readers unfamiliar with radio astronomy will encounter a dense information load, though Sagan structures explanations with pedagogical care. The density is comparable to Gravity's Rainbow's scientific passages but far more navigable.
Narrative indirection: 28 out of 100
Sagan narrates with omniscient directness. Ellie's thoughts, motivations, and emotions are stated explicitly. When Ellie understands something — the answer to the circumcised baby in the bullrushes, her stepfather's self-interest — Sagan tells us immediately. There is no withholding of the narrator's hand. The book sits near 1984's directness on this dimension, closer to instruction than inference.
Symbolic density: 45 out of 100
Pi recurs as a structural symbol — transcendental, irrational, infinite — and points toward the novel's culminating revelation about the hidden message in pi itself. Radio signals and silence carry symbolic weight as barriers and bridges between solitudes. The ants-versus-humans allegory for the civilizational gap appears twice. But these symbols are stated, not layered; Sagan ensures readers register them. The density is closer to To Kill a Mockingbird's named innocence than to Moby-Dick's oceanic symbol system.
Ironic distance: 20 out of 100
Contact is a sincere novel. Sagan means what he writes. The prose shares Sagan's own scientific and humanist convictions without ironic qualification — the wonder is genuine, the critique of religious dogma is earnest, the optimism about cosmic intelligence is unguarded. There is occasional dry wit in character dialogue but no sustained gap between what the text says and what the author intends.
Resolution withholding: 45 out of 100
The novel resolves its plot arc — the Machine is built, Ellie travels through it, returns — but deliberately withholds verification. The central question of what Ellie experienced cannot be proven. No evidence survives. The final pages reveal that pi's digits contain a hidden circle-pattern at unfathomable depth, which Ellie alone knows to look for. The ambiguity is thematically purposeful but the narrative arc itself closes more than it opens.
Structural complexity: 35 out of 100
Contact follows a chronological single-protagonist structure from Ellie's childhood through the Machine contact and its aftermath. Short interstitial sections from alien POVs (the ant-figure in the grass, the cosmic polyhedron) provide frame-of-reference shifts without true structural complexity. There are no fragmented timelines, no unreliable narrators, no formal experiments. The structure is closer to War and Peace's epic scope than to Flights's 116 fragments.

How Contact is regarded

Contact holds a literary regard score of 57 out of 100, weighing its place in the canon, its critical reception, its influence on other writers, and the standing of its author. Regard is measured separately from difficulty: a demanding book is not necessarily an admired one.

About the author

Carl Sagan