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How to Build a Time Machine
by Paul C.W. Davies • 2001
Forward time travel is real. Going back needs wormholes, exotic matter, and a loophole in causality.
3.82
1k+
How to Build a Time Machine Summary
How to Build a Time Machine 90%
Forward time travel is real. Going back needs wormholes, exotic matter, and a loophole in causality.
by Paul C.W. Davies 2001
3.82
1k+ ratings
The Time Ships
by Stephen Baxter • 1995
A Victorian inventor discovers his time machine has splintered the future into warring worlds.
3.95
7k+
The Time Ships Summary
The Time Ships 89%
A Victorian inventor discovers his time machine has splintered the future into warring worlds.
by Stephen Baxter 1995
3.95
7k+ ratings
Time Travel in Einstein's Universe
by J. Richard Gott III • 2001
Einstein's two routes to time travel, and why no one from the future has shown up.
4.07
2k+
Time Travel in Einstein's Universe Summary
Time Travel in Einstein's Universe 89%
Einstein's two routes to time travel, and why no one from the future has shown up.
by J. Richard Gott III 2001
4.07
2k+ ratings
Exhalation
by Ted Chiang • 2019
A merchant in ancient Baghdad steps through a time portal to undo a sorrow twenty years past.
4.27
113k+
Exhalation Summary
Exhalation 89%
A merchant in ancient Baghdad steps through a time portal to undo a sorrow twenty years past.
by Ted Chiang 2019
4.27
113k+ ratings
The Clock Mirage
by Joseph Mazur • 2020
Physics says time is relative. Biology says it's a cellular rhythm. The clock is a mirage.
3.42
118
The Clock Mirage Summary
The Clock Mirage 89%
Physics says time is relative. Biology says it's a cellular rhythm. The clock is a mirage.
by Joseph Mazur 2020
3.42
118 ratings
The Rise and Fall of D.O.D.O.
by Neal Stephenson • 2017
Magic died with the first photograph. A secret agency found a quantum loophole to restore it.
3.86
35k+
The Rise and Fall of D.O.D.O. Summary
The Rise and Fall of D.O.D.O. 89%
Magic died with the first photograph. A secret agency found a quantum loophole to restore it.
by Neal Stephenson 2017
3.86
35k+ ratings
Making History
by Stephen Fry • 1996
A Cambridge student sends a pill to sterilize Hitler's father. The new world is even darker.
3.92
12k+
Making History Summary
Making History 89%
A Cambridge student sends a pill to sterilize Hitler's father. The new world is even darker.
by Stephen Fry 1996
3.92
12k+ ratings
The Accidental Time Machine
by Joe Haldeman • 2007
A failed physicist's broken calibrator is a one-way time machine, each jump exponentially longer.
3.73
11k+
The Accidental Time Machine Summary
The Accidental Time Machine 89%
A failed physicist's broken calibrator is a one-way time machine, each jump exponentially longer.
by Joe Haldeman 2007
3.73
11k+ ratings
About Time
by Adam Frank • 2011
Time is a human invention, rebuilt every era. Our cosmology just catches up.
3.88
484
About Time Summary
About Time 88%
Time is a human invention, rebuilt every era. Our cosmology just catches up.
by Adam Frank 2011
3.88
484 ratings
The Shadows of London
by Nick Jones • 2021
A time traveler must prevent a 1963 London murder, or the sister he rescued will be erased.
4.07
5k+
The Shadows of London Summary
The Shadows of London 88%
A time traveler must prevent a 1963 London murder, or the sister he rescued will be erased.
by Nick Jones 2021
4.07
5k+ ratings
Recursion
by Blake Crouch • 2019
A detective and a neuroscientist race to stop a memory-altering technology from unraveling reality.
4.16
328k+
Recursion Summary
Recursion 88%
A detective and a neuroscientist race to stop a memory-altering technology from unraveling reality.
by Blake Crouch 2019
4.16
328k+ ratings
The Time Machine / The Invisible Man
by H.G. Wells • 2007
A time traveler finds a future where humans are prey. An invisible man terrorizes Victorian England.
4.10
57k+
The Time Machine / The Invisible Man Summary
The Time Machine / The Invisible Man 88%
A time traveler finds a future where humans are prey. An invisible man terrorizes Victorian England.
by H.G. Wells 2007
4.10
57k+ ratings
The Unusual Second Life of Thomas Weaver
by Shawn Inmon • 2015
A failed suicide sends Thomas Weaver to 1976, his dead brother alive, a killer in algebra.
4.18
4k+
The Unusual Second Life of Thomas Weaver Summary
The Unusual Second Life of Thomas Weaver 88%
A failed suicide sends Thomas Weaver to 1976, his dead brother alive, a killer in algebra.
by Shawn Inmon 2015
4.18
4k+ ratings
Counter-Clock World
by Philip K. Dick • 1967
When time flows backward, a resurrectionist revives a prophet and fights the book-erasing Library.
3.55
5k+
Counter-Clock World Summary
Counter-Clock World 88%
When time flows backward, a resurrectionist revives a prophet and fights the book-erasing Library.
by Philip K. Dick 1967
3.55
5k+ ratings
The Universe in a Nutshell
by Stephen W. Hawking • 2001
How can a three-dimensional universe be a flat hologram? The physics that points toward an answer.
4.18
46k+
The Universe in a Nutshell Summary
The Universe in a Nutshell 88%
How can a three-dimensional universe be a flat hologram? The physics that points toward an answer.
by Stephen W. Hawking 2001
4.18
46k+ ratings
The First Fifteen Lives of Harry August
by Claire North • 2014
Harry August relives his life, memory intact. A warning from the future: the world is ending.
4.03
101k+
The First Fifteen Lives of Harry August Summary
The First Fifteen Lives of Harry August 88%
Harry August relives his life, memory intact. A warning from the future: the world is ending.
by Claire North 2014
4.03
101k+ ratings
The Time Machine
by H.G. Wells • 1895
A Victorian inventor lands in a future paradise, unaware of what hunts its people after dark.
3.89
570k+
The Time Machine Summary
The Time Machine 88%
A Victorian inventor lands in a future paradise, unaware of what hunts its people after dark.
by H.G. Wells 1895
3.89
570k+ ratings
How to Invent Everything
by Ryan North • 2018
Stranded in the past with nothing but your wits, and the flowchart says you're before 50,000 BCE.
4.14
6k+
How to Invent Everything Summary
How to Invent Everything 88%
Stranded in the past with nothing but your wits, and the flowchart says you're before 50,000 BCE.
by Ryan North 2018
4.14
6k+ ratings
Version Control
by Dexter Palmer • 2016
Her son is dead. The world feels wrong. Her husband's time machine rewrites reality without trace.
3.72
8k+
Version Control Summary
Version Control 88%
Her son is dead. The world feels wrong. Her husband's time machine rewrites reality without trace.
by Dexter Palmer 2016
3.72
8k+ ratings
Your Brain Is a Time Machine
by Dean Buonomano • 2017
Your brain is a simulator of futures; physics suggests time may not flow at all.
3.90
2k+
Your Brain Is a Time Machine Summary
Your Brain Is a Time Machine 88%
Your brain is a simulator of futures; physics suggests time may not flow at all.
by Dean Buonomano 2017
3.90
2k+ ratings
The Secret Pulse of Time
by Stefan Klein • 2006
Your brain decides how fast time moves, and you can learn to set the pace.
3.88
712
The Secret Pulse of Time Summary
The Secret Pulse of Time 88%
Your brain decides how fast time moves, and you can learn to set the pace.
by Stefan Klein 2006
3.88
712 ratings
Tempest
by Julie Cross • 2011
Time jumps never changed anything, until a bullet threw a teen two years into the past.
3.70
14k+
Tempest Summary
Tempest 88%
Time jumps never changed anything, until a bullet threw a teen two years into the past.
by Julie Cross 2011
3.70
14k+ ratings
Split Second
by Douglas E. Richards • 2015
A time travel breakthrough costs a physicist his life, and his fiancée must run for hers.
3.97
28k+
Split Second Summary
Split Second 88%
A time travel breakthrough costs a physicist his life, and his fiancée must run for hers.
by Douglas E. Richards 2015
3.97
28k+ ratings
Quantum Radio
by A.G. Riddle • 2023
A physicist detects a signal from outside reality carrying four human genomes. One is his own.
4.08
17k+
Quantum Radio Summary
Quantum Radio 88%
A physicist detects a signal from outside reality carrying four human genomes. One is his own.
by A.G. Riddle 2023
4.08
17k+ ratings
Found
by Margaret Peterson Haddix • 2008
A note tells an adopted boy he was taken from the past. Then a second warns: someone's coming.
3.98
42k+
Found Summary
Found 88%
A note tells an adopted boy he was taken from the past. Then a second warns: someone's coming.
by Margaret Peterson Haddix 2008
3.98
42k+ ratings
The Peripheral
by William Gibson • 2014
Flynne Fisher pilots a drone sim, sees a murder in future London, and the killers know.
3.89
34k+
The Peripheral Summary
The Peripheral 88%
Flynne Fisher pilots a drone sim, sees a murder in future London, and the killers know.
by William Gibson 2014
3.89
34k+ ratings
The Best of Connie Willis
by Connie Willis • 1993
In worlds broken by time, war, and alien judgment, people still find reasons to sing.
4.10
2k+
The Best of Connie Willis Summary
The Best of Connie Willis 88%
In worlds broken by time, war, and alien judgment, people still find reasons to sing.
by Connie Willis 1993
4.10
2k+ ratings
Sent
by Margaret Peterson Haddix • 2009
Three kids crash into the 15th century, and one is a doomed prince history recorded as dead.
3.94
18k+
Sent Summary
Sent 87%
Three kids crash into the 15th century, and one is a doomed prince history recorded as dead.
by Margaret Peterson Haddix 2009
3.94
18k+ ratings
The Traveler
by Joseph Eckert • 2026
A single lost day becomes a skipped century, then the end of time, for one ordinary father.
4.09
729
The Traveler Summary
The Traveler 87%
A single lost day becomes a skipped century, then the end of time, for one ordinary father.
by Joseph Eckert 2026
4.09
729 ratings
The Anubis Gates
by Tim Powers • 1983
Marooned in 1810 London, a scholar discovers a city of sorcerer-clowns, body thieves, and old gods.
3.90
18k+
The Anubis Gates Summary
The Anubis Gates 87%
Marooned in 1810 London, a scholar discovers a city of sorcerer-clowns, body thieves, and old gods.
by Tim Powers 1983
3.90
18k+ ratings
Pebble in the Sky
by Isaac Asimov • 1950
A 1949 tailor hurled into the far future gains telepathy and must stop a galactic genocide.
3.90
28k+
Pebble in the Sky Summary
Pebble in the Sky 87%
A 1949 tailor hurled into the far future gains telepathy and must stop a galactic genocide.
by Isaac Asimov 1950
3.90
28k+ ratings
And Then She Vanished
by Nick Jones • 2021
His touch reads object histories. Hypnosis sends him back, to the night his sister vanished.
3.97
10k+
And Then She Vanished Summary
And Then She Vanished 87%
His touch reads object histories. Hypnosis sends him back, to the night his sister vanished.
by Nick Jones 2021
3.97
10k+ ratings
The Gone World
by Tom Sweterlitsch • 2018
A murdered family. A missing child. An agent who visits futures where humanity is always dead.
3.91
30k+
The Gone World Summary
The Gone World 87%
A murdered family. A missing child. An agent who visits futures where humanity is always dead.
by Tom Sweterlitsch 2018
3.91
30k+ ratings
When You Reach Me
by Rebecca Stead • 2009
In 1979, twelve-year-old Miranda finds notes predicting her best friend will die unless she acts.
4.08
117k+
When You Reach Me Summary
When You Reach Me 87%
In 1979, twelve-year-old Miranda finds notes predicting her best friend will die unless she acts.
by Rebecca Stead 2009
4.08
117k+ ratings
The Other Valley
by Scott Alexander Howard • 2024
Odile guards the border between her valley and the past. Her oldest friend is trying to cross.
3.87
26k+
The Other Valley Summary
The Other Valley 87%
Odile guards the border between her valley and the past. Her oldest friend is trying to cross.
by Scott Alexander Howard 2024
3.87
26k+ ratings
The Light of All That Falls
by James Islington • 2019
A guilty immortal, a soldier trapped in time, and an outcast must break fate's cycle.
4.40
42k+
The Light of All That Falls Summary
The Light of All That Falls 87%
A guilty immortal, a soldier trapped in time, and an outcast must break fate's cycle.
by James Islington 2019
4.40
42k+ ratings
The Order of Time
by Carlo Rovelli • 2017
Time bends with gravity. No cosmos-wide now exists. The arrow of time is only entropy, rising.
4.13
39k+
The Order of Time Summary
The Order of Time 87%
Time bends with gravity. No cosmos-wide now exists. The arrow of time is only entropy, rising.
by Carlo Rovelli 2017
4.13
39k+ ratings
Schrödinger's Kittens and the Search for Reality
by John Gribbin • 1996
Quantum paradoxes resolve when you realize particles don't experience time the way we do.
4.07
2k+
Schrödinger's Kittens and the Search for Reality Summary
Schrödinger's Kittens and the Search for Reality 87%
Quantum paradoxes resolve when you realize particles don't experience time the way we do.
by John Gribbin 1996
4.07
2k+ ratings
Einstein's Fridge
by Paul Sen • 2021
The science of heat built the modern world and governs time's arrow, life, and black holes.
4.26
989
Einstein's Fridge Summary
Einstein's Fridge 87%
The science of heat built the modern world and governs time's arrow, life, and black holes.
by Paul Sen 2021
4.26
989 ratings
The Number of the Beast
by Robert A. Heinlein • 1980
Two couples flee assassins in a flying car that jumps to every universe ever imagined.
3.63
13k+
The Number of the Beast Summary
The Number of the Beast 87%
Two couples flee assassins in a flying car that jumps to every universe ever imagined.
by Robert A. Heinlein 1980
3.63
13k+ ratings
Chronicles From The Future
by Achilleas Sirigos • 1972
From a coma in 1921, a teacher awakens inside a man of the year 3906.
3.78
569
Chronicles From The Future Summary
Chronicles From The Future 87%
From a coma in 1921, a teacher awakens inside a man of the year 3906.
by Achilleas Sirigos 1972
3.78
569 ratings
Hazards of Time Travel
by Joyce Carol Oates • 2018
A teenager's forbidden questions land her in 1959 Wisconsin, where one wrong memory means erasure.
2.98
8k+
Hazards of Time Travel Summary
Hazards of Time Travel 87%
A teenager's forbidden questions land her in 1959 Wisconsin, where one wrong memory means erasure.
by Joyce Carol Oates 2018
2.98
8k+ ratings
11/22/63
by Stephen King • 2011
A diner's pantry opens onto 1958. A teacher walks in with five years to stop an assassin.
4.35
667k+
11/22/63 Summary
11/22/63 87%
A diner's pantry opens onto 1958. A teacher walks in with five years to stop an assassin.
by Stephen King 2011
4.35
667k+ ratings
The Fabric of the Cosmos
by Brian Greene • 2004
Space stretches, time is relative, and your present moment is an illusion.
4.13
41k+
The Fabric of the Cosmos Summary
The Fabric of the Cosmos 87%
Space stretches, time is relative, and your present moment is an illusion.
by Brian Greene 2004
4.13
41k+ ratings
Departure 37
by Scott Carson • 2025
Voices of the dead warn every pilot. Then a B-52 missing since 1962 lands.
3.82
2k+
Departure 37 Summary
Departure 37 87%
Voices of the dead warn every pilot. Then a B-52 missing since 1962 lands.
by Scott Carson 2025
3.82
2k+ ratings
The Montauk Project
by Preston B. Nichols • 1992
On Long Island, a secret time-travel program ran until a psychic's subconscious released a monster.
3.45
819
The Montauk Project Summary
The Montauk Project 87%
On Long Island, a secret time-travel program ran until a psychic's subconscious released a monster.
by Preston B. Nichols 1992
3.45
819 ratings
Life After Life
by Kate Atkinson • 2013
Repeatedly reborn, Ursula Todd endures two world wars, each life a chance to save her family.
3.79
243k+
Life After Life Summary
Life After Life 87%
Repeatedly reborn, Ursula Todd endures two world wars, each life a chance to save her family.
by Kate Atkinson 2013
3.79
243k+ ratings
Sea of Tranquility
by Emily St. John Mandel • 2022
A violin echoes across centuries, linking an exiled nobleman, a moon author, and a time detective.
4.05
303k+
Sea of Tranquility Summary
Sea of Tranquility 87%
A violin echoes across centuries, linking an exiled nobleman, a moon author, and a time detective.
by Emily St. John Mandel 2022
4.05
303k+ ratings
The Biggest Ideas in the Universe
by Sean Carroll • 2022
How equations reveal curved spacetime and time's arrow, no physics degree required.
4.00
2k+
The Biggest Ideas in the Universe Summary
The Biggest Ideas in the Universe 87%
How equations reveal curved spacetime and time's arrow, no physics degree required.
by Sean Carroll 2022
4.00
2k+ ratings
The Lost Colony
by Eoin Colfer • 2006
A teenage genius hunts time-displaced demons, but a rival prodigy reaches their island first.
4.01
160k+
The Lost Colony Summary
The Lost Colony 87%
A teenage genius hunts time-displaced demons, but a rival prodigy reaches their island first.
by Eoin Colfer 2006
4.01
160k+ ratings
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