Start free trial
EnglishEnglish
EspañolSpanish
简体中文Chinese
繁體中文Chinese (Traditional)
FrançaisFrench
DeutschGerman
日本語Japanese
PortuguêsPortuguese
ItalianoItalian
한국어Korean
РусскийRussian
NederlandsDutch
العربيةArabic
PolskiPolish
हिन्दीHindi
Tiếng ViệtVietnamese
SvenskaSwedish
ΕλληνικάGreek
TürkçeTurkish
ไทยThai
ČeštinaCzech
RomânăRomanian
MagyarHungarian
УкраїнськаUkrainian
IndonesiaIndonesian
DanskDanish
SuomiFinnish
БългарскиBulgarian
עבריתHebrew
NorskNorwegian
HrvatskiCroatian
CatalàCatalan
SlovenčinaSlovak
LietuviųLithuanian
SlovenščinaSlovenian
СрпскиSerbian
EestiEstonian
LatviešuLatvian
فارسیPersian
മലയാളംMalayalam
தமிழ்Tamil
اردوUrdu
SoBrief
Searching...
The Book of Why
by Judea Pearl • 2018
Data can't tell you why. A mathematical science of cause and effect finally can.
3.93
7k+
The Book of Why Summary
The Book of Why 90%
Data can't tell you why. A mathematical science of cause and effect finally can.
by Judea Pearl 2018
3.93
7k+ ratings
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 89%
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 Big Picture
by Sean Carroll • 2016
How a purposeless cosmos produces life, mind, and the meaning we build for ourselves.
4.18
10k+
The Big Picture Summary
The Big Picture 89%
How a purposeless cosmos produces life, mind, and the meaning we build for ourselves.
by Sean Carroll 2016
4.18
10k+ ratings
The Science of Free Will
by Samir Varma • 2025
You can't predict your next thought. No computer can either. That's not a gap: it's free will.
3.35
17
The Science of Free Will Summary
The Science of Free Will 88%
You can't predict your next thought. No computer can either. That's not a gap: it's free will.
by Samir Varma 2025
3.35
17 ratings
The Music of Life
by Denis Noble • 2006
The genome is a database, not a dictator. Life runs on systems, not commands.
3.85
388
The Music of Life Summary
The Music of Life 88%
The genome is a database, not a dictator. Life runs on systems, not commands.
by Denis Noble 2006
3.85
388 ratings
Introduction to Logic
by Irving M. Copi • 1953
How to spot a flawed argument: the logic toolkit from Aristotle to truth tables.
4.07
919
Introduction to Logic Summary
Introduction to Logic 88%
How to spot a flawed argument: the logic toolkit from Aristotle to truth tables.
by Irving M. Copi 1953
4.07
919 ratings
Philosophy of Science
by Samir Okasha • 2002
Atoms are invisible. Theories change every half-century. Why trust science? A compact guide.
3.93
4k+
Philosophy of Science Summary
Philosophy of Science 88%
Atoms are invisible. Theories change every half-century. Why trust science? A compact guide.
by Samir Okasha 2002
3.93
4k+ ratings
Metaphysics
by Aristotle
What is being? Aristotle’s inquiry into the first causes and architecture of reality itself.
4.07
18k+
Metaphysics Summary
Metaphysics 88%
What is being? Aristotle’s inquiry into the first causes and architecture of reality itself.
by Aristotle
4.07
18k+ ratings
Determined
by Robert M. Sapolsky • 2023
You chose nothing. Genes, upbringing, chemistry chose everything. The science that rewrites justice.
4.23
8k+
Determined Summary
Determined 88%
You chose nothing. Genes, upbringing, chemistry chose everything. The science that rewrites justice.
by Robert M. Sapolsky 2023
4.23
8k+ ratings
The Systems Bible
by John Gall • 1977
Every system malfunctions and fights its own purpose. The counterintuitive guide to surviving them.
3.99
1k+
The Systems Bible Summary
The Systems Bible 88%
Every system malfunctions and fights its own purpose. The counterintuitive guide to surviving them.
by John Gall 1977
3.99
1k+ ratings
Everyday Chaos
by David Weinberger • 2019
A medical AI diagnoses illness but can't explain how. The age of demanding explanations is over.
3.78
202
Everyday Chaos Summary
Everyday Chaos 88%
A medical AI diagnoses illness but can't explain how. The age of demanding explanations is over.
by David Weinberger 2019
3.78
202 ratings
How to Predict Everything
by William Poundstone • 2019
The math that gives humanity 760 more years also explains why aliens never call.
3.19
68
How to Predict Everything Summary
How to Predict Everything 88%
The math that gives humanity 760 more years also explains why aliens never call.
by William Poundstone 2019
3.19
68 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 88%
How equations reveal curved spacetime and time's arrow, no physics degree required.
by Sean Carroll 2022
4.00
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 88%
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
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 88%
Quantum paradoxes resolve when you realize particles don't experience time the way we do.
by John Gribbin 1996
4.07
2k+ ratings
Framers
by Kenneth Cukier • 2021
AI can't ask 'what if.' That single gap explains why humans remain irreplaceable.
3.53
568
Framers Summary
Framers 87%
AI can't ask 'what if.' That single gap explains why humans remain irreplaceable.
by Kenneth Cukier 2021
3.53
568 ratings
The Grand Design
by Stephen W. Hawking • 2010
A landscape of 10^500 possible universes explains the fine-tuning of ours, no designer required.
4.06
78k+
The Grand Design Summary
The Grand Design 87%
A landscape of 10^500 possible universes explains the fine-tuning of ours, no designer required.
by Stephen W. Hawking 2010
4.06
78k+ ratings
Endless Universe
by Paul J. Steinhardt • 2007
The Big Bang was not the beginning. A trillion-year cycle of collisions remakes the universe.
4.12
1k+
Endless Universe Summary
Endless Universe 87%
The Big Bang was not the beginning. A trillion-year cycle of collisions remakes the universe.
by Paul J. Steinhardt 2007
4.12
1k+ ratings
The Quantum Rules
by Kunal K. Das • 2013
Quantum laws don't just govern particles: they explain why relationships fail and time speeds up.
3.61
256
The Quantum Rules Summary
The Quantum Rules 87%
Quantum laws don't just govern particles: they explain why relationships fail and time speeds up.
by Kunal K. Das 2013
3.61
256 ratings
Existential Physics
by Sabine Hossenfelder • 2022
What physics says about time, free will, and the cosmos versus the stories sold as science.
3.88
3k+
Existential Physics Summary
Existential Physics 87%
What physics says about time, free will, and the cosmos versus the stories sold as science.
by Sabine Hossenfelder 2022
3.88
3k+ ratings
The Systems Thinker
by Albert Rutherford • 2018
The mental models and feedback tools that crack the problems linear thinking only makes worse.
3.49
356
The Systems Thinker Summary
The Systems Thinker 87%
The mental models and feedback tools that crack the problems linear thinking only makes worse.
by Albert Rutherford 2018
3.49
356 ratings
Ubiquity
by Mark Buchanan • 2000
One grain of sand explains why markets crash, species vanish, and empires fall.
3.90
716
Ubiquity Summary
Ubiquity 87%
One grain of sand explains why markets crash, species vanish, and empires fall.
by Mark Buchanan 2000
3.90
716 ratings
Other Worlds
by Paul C.W. Davies • 1980
Observation brings reality into being; our habitable universe may be a fluke among dead worlds.
3.86
188
Other Worlds Summary
Other Worlds 87%
Observation brings reality into being; our habitable universe may be a fluke among dead worlds.
by Paul C.W. Davies 1980
3.86
188 ratings
Normal Accidents
by Charles Perrow • 1984
The safer we try to make a system, the more unknowable its failure modes become.
4.05
704
Normal Accidents Summary
Normal Accidents 87%
The safer we try to make a system, the more unknowable its failure modes become.
by Charles Perrow 1984
4.05
704 ratings
How to Expect the Unexpected
by Kit Yates • 2023
Master the science of prediction: why your gut fails, and when the smartest forecast is none.
3.69
188
How to Expect the Unexpected Summary
How to Expect the Unexpected 87%
Master the science of prediction: why your gut fails, and when the smartest forecast is none.
by Kit Yates 2023
3.69
188 ratings
Human Universe
by Brian Cox • 2014
The galaxy should teem with life. The silence hints we might be alone in asking why.
4.28
5k+
Human Universe Summary
Human Universe 87%
The galaxy should teem with life. The silence hints we might be alone in asking why.
by Brian Cox 2014
4.28
5k+ ratings
Deep Simplicity
by John Gribbin • 2004
Simple rules, run long enough, build a universe. A physicist shows the working.
3.98
2k+
Deep Simplicity Summary
Deep Simplicity 87%
Simple rules, run long enough, build a universe. A physicist shows the working.
by John Gribbin 2004
3.98
2k+ 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 87%
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
The Island of Knowledge
by Marcelo Gleiser • 2014
More answers only widen the shoreline of the unknowable. A physicist maps the ultimate limits.
3.93
915
The Island of Knowledge Summary
The Island of Knowledge 87%
More answers only widen the shoreline of the unknowable. A physicist maps the ultimate limits.
by Marcelo Gleiser 2014
3.93
915 ratings
Fluke
by Brian Klaas • 2024
Your brain evolved to hide chance from you. Chaos science reveals what you are missing.
4.06
4k+
Fluke Summary
Fluke 87%
Your brain evolved to hide chance from you. Chaos science reveals what you are missing.
by Brian Klaas 2024
4.06
4k+ ratings
Just Six Numbers
by Martin J. Rees • 1999
The difference between a living universe and a dead one is six numbers.
3.96
5k+
Just Six Numbers Summary
Just Six Numbers 87%
The difference between a living universe and a dead one is six numbers.
by Martin J. Rees 1999
3.96
5k+ ratings
The Fabric of Reality
by David Deutsch • 1996
Quantum interference reveals other universes touching ours; the multiverse is not optional.
4.14
6k+
The Fabric of Reality Summary
The Fabric of Reality 87%
Quantum interference reveals other universes touching ours; the multiverse is not optional.
by David Deutsch 1996
4.14
6k+ ratings
The Future of Everything
by David Orrell • 2006
Weather, markets, pandemics: the science of why forecasts fail, and what to build instead.
3.67
117
The Future of Everything Summary
The Future of Everything 87%
Weather, markets, pandemics: the science of why forecasts fail, and what to build instead.
by David Orrell 2006
3.67
117 ratings
The Goldilocks Enigma
by Paul C.W. Davies • 2006
A handful of numbers enable existence. Their precision mocks chance. The search for why.
4.06
1k+
The Goldilocks Enigma Summary
The Goldilocks Enigma 87%
A handful of numbers enable existence. Their precision mocks chance. The search for why.
by Paul C.W. Davies 2006
4.06
1k+ ratings
Until the End of Time
by Brian Greene • 2020
The universe is winding down, yet it made you. Why, from quarks to consciousness.
4.04
6k+
Until the End of Time Summary
Until the End of Time 87%
The universe is winding down, yet it made you. Why, from quarks to consciousness.
by Brian Greene 2020
4.04
6k+ ratings
Debugging
by David J. Agans • 2002
Learn to debug like a detective: reproduce the crime, divide the scene, and never guess.
4.26
509
Debugging Summary
Debugging 87%
Learn to debug like a detective: reproduce the crime, divide the scene, and never guess.
by David J. Agans 2002
4.26
509 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
Chaos
by James Gleick • 1987
A rounding error revealed that chaos hides order. The discovery reshaped what science can predict.
4.03
41k+
Chaos Summary
Chaos 87%
A rounding error revealed that chaos hides order. The discovery reshaped what science can predict.
by James Gleick 1987
4.03
41k+ ratings
Quantum Enigma
by Bruce Rosenblum • 2006
Quantum mechanics says reality is created by observation. What does that mean for our minds?
4.13
2k+
Quantum Enigma Summary
Quantum Enigma 87%
Quantum mechanics says reality is created by observation. What does that mean for our minds?
by Bruce Rosenblum 2006
4.13
2k+ ratings
The Art of Statistics
by David Spiegelhalter • 2019
Numbers are mute. How statisticians make them speak, and why p-values and correlation aren't enough.
4.15
6k+
The Art of Statistics Summary
The Art of Statistics 87%
Numbers are mute. How statisticians make them speak, and why p-values and correlation aren't enough.
by David Spiegelhalter 2019
4.15
6k+ ratings
Systems Thinking For Social Change
by David Peter Stroh • 2015
Why well-meaning solutions backfire, and where to intervene in a system so change actually lasts.
3.79
852
Systems Thinking For Social Change Summary
Systems Thinking For Social Change 87%
Why well-meaning solutions backfire, and where to intervene in a system so change actually lasts.
by David Peter Stroh 2015
3.79
852 ratings
Unweaving the Rainbow
by Richard Dawkins • 2000
Keats was wrong: explaining the rainbow reveals an elegance no myth can match.
4.01
12k+
Unweaving the Rainbow Summary
Unweaving the Rainbow 87%
Keats was wrong: explaining the rainbow reveals an elegance no myth can match.
by Richard Dawkins 2000
4.01
12k+ ratings
Something Deeply Hidden
by Sean Carroll • 2019
Every quantum event spawns new worlds. Spacetime is just a convenient fiction.
4.08
6k+
Something Deeply Hidden Summary
Something Deeply Hidden 87%
Every quantum event spawns new worlds. Spacetime is just a convenient fiction.
by Sean Carroll 2019
4.08
6k+ ratings
The God Equation
by Michio Kaku • 2021
Three forces unified. Gravity alone resists. The ten-dimensional theory that might finally crack it.
4.11
9k+
The God Equation Summary
The God Equation 87%
Three forces unified. Gravity alone resists. The ten-dimensional theory that might finally crack it.
by Michio Kaku 2021
4.11
9k+ ratings
This Idea Is Brilliant
by John Brockman • 2018
The overlooked scientific ideas top minds most urgently want you to know, from entropy to emergence.
3.83
662
This Idea Is Brilliant Summary
This Idea Is Brilliant 87%
The overlooked scientific ideas top minds most urgently want you to know, from entropy to emergence.
by John Brockman 2018
3.83
662 ratings
Root Cause Analysis
by Duke Okes • 2009
A disciplined diagnostic method that isolates the system cause, then proves the fix held.
3.75
51
Root Cause Analysis Summary
Root Cause Analysis 87%
A disciplined diagnostic method that isolates the system cause, then proves the fix held.
by Duke Okes 2009
3.75
51 ratings
Think in Systems
by Zoe McKey • 2018
Stop fighting symptoms. Find the hidden loops and the one change that rewires the entire problem.
3.49
253
Think in Systems Summary
Think in Systems 87%
Stop fighting symptoms. Find the hidden loops and the one change that rewires the entire problem.
by Zoe McKey 2018
3.49
253 ratings
Reality is Not What it Seems
by Carlo Rovelli • 2014
The universe has no bottom: particles dissolve into fields, space into grains, time into ignorance.
4.33
17k+
Reality is Not What it Seems Summary
Reality is Not What it Seems 87%
The universe has no bottom: particles dissolve into fields, space into grains, time into ignorance.
by Carlo Rovelli 2014
4.33
17k+ ratings
Uncertainty
by David Lindley • 1996
You cannot measure everything. Einstein spent decades fighting that fact. What it cost him.
4.02
2k+
Uncertainty Summary
Uncertainty 87%
You cannot measure everything. Einstein spent decades fighting that fact. What it cost him.
by David Lindley 1996
4.02
2k+ ratings
Complexity
by M. Mitchell Waldrop • 1992
In a desert convent, a few rogue scientists discovered the universal grammar of complex systems.
4.05
3k+
Complexity Summary
Complexity 87%
In a desert convent, a few rogue scientists discovered the universal grammar of complex systems.
by M. Mitchell Waldrop 1992
4.05
3k+ ratings
Home
Swipe
Library
Get App
Try Full Access for 3 Days
Listen, bookmark, and more
Compare Features Free Pro
📖 Read Summaries
Read unlimited summaries. Free users get 3 per month
🎧 Listen to Summaries
Listen to unlimited summaries in 40 languages
❤️ Unlimited Bookmarks
Free users are limited to 4
📜 Unlimited History
Free users are limited to 4
📥 Unlimited Downloads
Free users are limited to 1
Risk-Free Timeline
Today: Get Instant Access
Listen to full summaries of 26,000+ books. That's 12,000+ hours of audio!
Day 2: Trial Reminder
We'll send you a notification that your trial is ending soon.
Day 3: Your subscription begins
You'll be charged on Jul 25,
cancel anytime before.
Consume 2.8× More Books
2.8× more books Listening Reading
Our users love us
600,000+ readers
Trustpilot Rating
TrustPilot
4.6 Excellent
This site is a total game-changer. I've been flying through book summaries like never before. Highly, highly recommend.
— Dave G
Worth my money and time, and really well made. I've never seen this quality of summaries on other websites. Very helpful!
— Em
Highly recommended!! Fantastic service. Perfect for those that want a little more than a teaser but not all the intricate details of a full audio book.
— Greg M
Save 62%
Yearly
$119.88 $44.99/year/yr
$3.75/mo
Monthly
$9.99/mo
Start a 3-Day Free Trial
3 days free, then $44.99/year. Cancel anytime.
Unlock a world of fiction & nonfiction books
26,000+ books for the price of 2 books
Read any book in 10 minutes
Discover new books like Tinder
Request any book if it's not summarized
Read more books than anyone you know
#1 app for book lovers
Lifelike & immersive summaries
30-day money-back guarantee
Download summaries in EPUBs or PDFs
Cancel anytime in a few clicks
Scanner
Find a barcode to scan

We have a special gift for you
Open
38% OFF
DISCOUNT FOR YOU
$79.99
$49.99/year
only $4.16 per month
Continue
2 taps to start, super easy to cancel
Settings
General
Widget
Loading...
We have a special gift for you
Open
38% OFF
DISCOUNT FOR YOU
$79.99
$49.99/year
only $4.16 per month
Continue
2 taps to start, super easy to cancel