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...
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 94%
The difference between a living universe and a dead one is six numbers.
by Martin J. Rees 1999
3.96
5k+ ratings
Parallel Worlds
by Michio Kaku • 2004
A multiverse explains our improbable existence, and may offer an escape when this universe freezes.
4.21
23k+
Parallel Worlds Summary
Parallel Worlds 93%
A multiverse explains our improbable existence, and may offer an escape when this universe freezes.
by Michio Kaku 2004
4.21
23k+ 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 93%
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
Cycles of Time
by Roger Penrose • 2010
Before our Big Bang, another universe died. Its gravitational echoes may still be visible overhead.
3.93
3k+
Cycles of Time Summary
Cycles of Time 93%
Before our Big Bang, another universe died. Its gravitational echoes may still be visible overhead.
by Roger Penrose 2010
3.93
3k+ ratings
In Search of the Multiverse
by John Gribbin • 2009
Our universe seems fine-tuned for life. The real explanation: it is just one of countless tries.
4.08
1k+
In Search of the Multiverse Summary
In Search of the Multiverse 93%
Our universe seems fine-tuned for life. The real explanation: it is just one of countless tries.
by John Gribbin 2009
4.08
1k+ ratings
On the Origin of Time
by Thomas Hertog • 2023
The universe has no single origin story. Hawking's last theory: our questions shape the cosmic past.
4.06
3k+
On the Origin of Time Summary
On the Origin of Time 93%
The universe has no single origin story. Hawking's last theory: our questions shape the cosmic past.
by Thomas Hertog 2023
4.06
3k+ ratings
The Theory of Everything
by Stephen W. Hawking • 2002
If a universe can arise from nothing, what role remains for a creator?
4.18
29k+
The Theory of Everything Summary
The Theory of Everything 93%
If a universe can arise from nothing, what role remains for a creator?
by Stephen W. Hawking 2002
4.18
29k+ 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 93%
Three forces unified. Gravity alone resists. The ten-dimensional theory that might finally crack it.
by Michio Kaku 2021
4.11
9k+ ratings
The End of Everything
by Katie Mack • 2020
Five ways the universe ends, from a cold fade to a quantum bubble that deletes reality.
4.25
13k+
The End of Everything Summary
The End of Everything 93%
Five ways the universe ends, from a cold fade to a quantum bubble that deletes reality.
by Katie Mack 2020
4.25
13k+ ratings
The Universe in Your Hand
by Christophe Galfard • 2015
Why time slows at high speed, space is never empty, 95% of the universe is missing.
4.39
7k+
The Universe in Your Hand Summary
The Universe in Your Hand 93%
Why time slows at high speed, space is never empty, 95% of the universe is missing.
by Christophe Galfard 2015
4.39
7k+ 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 93%
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
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 93%
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 Elephant in the Universe
by Govert Schilling • 2022
Eighty-four percent of matter is invisible. A century-long hunt has yet to catch it.
4.07
265
The Elephant in the Universe Summary
The Elephant in the Universe 93%
Eighty-four percent of matter is invisible. A century-long hunt has yet to catch it.
by Govert Schilling 2022
4.07
265 ratings
The Cyclic Universe
by Howard Burton • 2013
An infinite cycle: the far future of one universe ignites the Big Bang of the next.
4.25
28
The Cyclic Universe Summary
The Cyclic Universe 92%
An infinite cycle: the far future of one universe ignites the Big Bang of the next.
by Howard Burton 2013
4.25
28 ratings
A Universe from Nothing
by Lawrence M. Krauss • 2012
No creator required. Physics now shows how a universe can emerge from nothing.
3.94
31k+
A Universe from Nothing Summary
A Universe from Nothing 92%
No creator required. Physics now shows how a universe can emerge from nothing.
by Lawrence M. Krauss 2012
3.94
31k+ ratings
The Dancing Universe
by Marcelo Gleiser • 1997
Creation myths were not wrong turns. They were the first cosmology, and physics is their heir.
4.22
550
The Dancing Universe Summary
The Dancing Universe 92%
Creation myths were not wrong turns. They were the first cosmology, and physics is their heir.
by Marcelo Gleiser 1997
4.22
550 ratings
The First Three Minutes
by Steven Weinberg • 1977
Three minutes after the Big Bang, the universe fixed its elemental recipe forever.
4.10
13k+
The First Three Minutes Summary
The First Three Minutes 92%
Three minutes after the Big Bang, the universe fixed its elemental recipe forever.
by Steven Weinberg 1977
4.10
13k+ ratings
The Hidden Reality
by Brian Greene • 2011
A single unsettling destination modern physics keeps reaching: our universe is not the only one.
4.11
21k+
The Hidden Reality Summary
The Hidden Reality 92%
A single unsettling destination modern physics keeps reaching: our universe is not the only one.
by Brian Greene 2011
4.11
21k+ ratings
The Science of Interstellar
by Kip S. Thorne • 2015
Black holes bend time. Wormholes need exotic matter. Interstellar's physicist explains.
4.30
7k+
The Science of Interstellar Summary
The Science of Interstellar 92%
Black holes bend time. Wormholes need exotic matter. Interstellar's physicist explains.
by Kip S. Thorne 2015
4.30
7k+ ratings
A Brief Welcome to the Universe
by Neil deGrasse Tyson • 2021
A quick spin through the cosmos: what stars cook, why galaxies flee, how long we last.
4.03
622
A Brief Welcome to the Universe Summary
A Brief Welcome to the Universe 92%
A quick spin through the cosmos: what stars cook, why galaxies flee, how long we last.
by Neil deGrasse Tyson 2021
4.03
622 ratings
Coming of Age in the Milky Way
by Timothy Ferris • 2003
Our cosmic address was once a tiny sphere with Earth at its center. How we found the real one.
4.16
3k+
Coming of Age in the Milky Way Summary
Coming of Age in the Milky Way 92%
Our cosmic address was once a tiny sphere with Earth at its center. How we found the real one.
by Timothy Ferris 2003
4.16
3k+ 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 92%
A handful of numbers enable existence. Their precision mocks chance. The search for why.
by Paul C.W. Davies 2006
4.06
1k+ ratings
Hyperspace
by Michio Kaku • 1994
One idea unifies physics: add dimensions and the laws simplify. Why the cosmos may need ten.
4.15
24k+
Hyperspace Summary
Hyperspace 92%
One idea unifies physics: add dimensions and the laws simplify. Why the cosmos may need ten.
by Michio Kaku 1994
4.15
24k+ ratings
Our Mathematical Universe
by Max Tegmark • 2012
The universe is a mathematical structure, and parallel worlds exist at four different scales.
4.18
9k+
Our Mathematical Universe Summary
Our Mathematical Universe 92%
The universe is a mathematical structure, and parallel worlds exist at four different scales.
by Max Tegmark 2012
4.18
9k+ ratings
A Briefer History of Time
by Stephen W. Hawking • 2005
Why time only runs forward, how black holes evaporate, and where physics must start over.
4.26
43k+
A Briefer History of Time Summary
A Briefer History of Time 92%
Why time only runs forward, how black holes evaporate, and where physics must start over.
by Stephen W. Hawking 2005
4.26
43k+ ratings
The Road to Reality
by Roger Penrose • 2004
Physics, equation by equation: the complete mathematical tour from arithmetic to quantum fields.
4.17
9k+
The Road to Reality Summary
The Road to Reality 92%
Physics, equation by equation: the complete mathematical tour from arithmetic to quantum fields.
by Roger Penrose 2004
4.17
9k+ ratings
Gravity
by James B. Hartle • 2002
Gravity is spacetime curvature. An undergraduate textbook from special relativity to black holes.
4.25
158
Gravity Summary
Gravity 92%
Gravity is spacetime curvature. An undergraduate textbook from special relativity to black holes.
by James B. Hartle 2002
4.25
158 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 92%
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
The Accidental Universe
by Alan Lightman • 2013
You see a fraction of the universe. A physicist maps the vast, invisible rest.
3.85
5k+
The Accidental Universe Summary
The Accidental Universe 92%
You see a fraction of the universe. A physicist maps the vast, invisible rest.
by Alan Lightman 2013
3.85
5k+ 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 92%
The universe has no bottom: particles dissolve into fields, space into grains, time into ignorance.
by Carlo Rovelli 2014
4.33
17k+ ratings
The Elegant Universe
by Brian Greene • 1999
Physics' sixty-year civil war. String theory says both sides win, if reality has ten dimensions.
4.10
103k+
The Elegant Universe Summary
The Elegant Universe 92%
Physics' sixty-year civil war. String theory says both sides win, if reality has ten dimensions.
by Brian Greene 1999
4.10
103k+ ratings
Seven Brief Lessons on Physics
by Carlo Rovelli • 2014
Space bends. Time is an illusion. Seven short lessons on the universe as it actually is.
3.98
68k+
Seven Brief Lessons on Physics Summary
Seven Brief Lessons on Physics 92%
Space bends. Time is an illusion. Seven short lessons on the universe as it actually is.
by Carlo Rovelli 2014
3.98
68k+ ratings
Astrophysics for People in a Hurry
by Neil deGrasse Tyson • 2017
From cosmic speck to the atoms in your bones: a quick tour of the universe.
4.08
210k+
Astrophysics for People in a Hurry Summary
Astrophysics for People in a Hurry 92%
From cosmic speck to the atoms in your bones: a quick tour of the universe.
by Neil deGrasse Tyson 2017
4.08
210k+ ratings
Black Holes and Baby Universes and Other Essays
by Stephen W. Hawking • 1993
Black holes are not black, imaginary time behaves like space, and everything is determined.
4.18
19k+
Black Holes and Baby Universes and Other Essays Summary
Black Holes and Baby Universes and Other Essays 92%
Black holes are not black, imaginary time behaves like space, and everything is determined.
by Stephen W. Hawking 1993
4.18
19k+ 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 92%
Space stretches, time is relative, and your present moment is an illusion.
by Brian Greene 2004
4.13
41k+ 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 91%
How equations reveal curved spacetime and time's arrow, no physics degree required.
by Sean Carroll 2022
4.00
2k+ ratings
The Black Hole War
by Leonard Susskind • 2008
Hawking said black holes destroy information. Susskind spent thirty years proving he was wrong.
4.13
12k+
The Black Hole War Summary
The Black Hole War 91%
Hawking said black holes destroy information. Susskind spent thirty years proving he was wrong.
by Leonard Susskind 2008
4.13
12k+ ratings
To Infinity and Beyond
by Neil deGrasse Tyson • 2023
A cosmic tour where emptiness isn't empty, time bends, and most of reality remains invisible.
4.31
2k+
To Infinity and Beyond Summary
To Infinity and Beyond 91%
A cosmic tour where emptiness isn't empty, time bends, and most of reality remains invisible.
by Neil deGrasse Tyson 2023
4.31
2k+ ratings
Why Does E=mc2? by Cox, Brian, Forshaw, Jeff [Da Capo Press, 2010] (Paperback) [Paperback]
by Cox • 2009
Chase a light beam: it still outruns you. That single fact rebuilds spacetime from scratch.
4.05
10k+
Why Does E=mc2? by Cox, Brian, Forshaw, Jeff [Da Capo Press, 2010] (Paperback) [Paperback] Summary
Why Does E=mc2? by Cox, Brian, Forshaw, Jeff [Da Capo Press, 2010] (Paperback) [Paperback] 91%
Chase a light beam: it still outruns you. That single fact rebuilds spacetime from scratch.
by Cox 2009
4.05
10k+ ratings
Gravitation and Cosmology
by Steven Weinberg • 1972
A textbook that doesn't ask you to imagine curved spacetime; it proves you can't avoid it.
4.50
177
Gravitation and Cosmology Summary
Gravitation and Cosmology 91%
A textbook that doesn't ask you to imagine curved spacetime; it proves you can't avoid it.
by Steven Weinberg 1972
4.50
177 ratings
The Mind of God
by Paul C.W. Davies • 1992
The universe's rational order is the fingerprint of a cosmic mind, a physicist argues.
3.86
2k+
The Mind of God Summary
The Mind of God 91%
The universe's rational order is the fingerprint of a cosmic mind, a physicist argues.
by Paul C.W. Davies 1992
3.86
2k+ ratings
Death by Black Hole
by Neil deGrasse Tyson • 2006
Stars made every atom in your body. They can also kill you. Welcome to the universe.
4.10
32k+
Death by Black Hole Summary
Death by Black Hole 91%
Stars made every atom in your body. They can also kill you. Welcome to the universe.
by Neil deGrasse Tyson 2006
4.10
32k+ ratings
Black Hole Survival Guide
by Janna Levin • 2020
A black hole is curved void, not dense mass. Inside, the future ends and reality turns holographic.
4.00
2k+
Black Hole Survival Guide Summary
Black Hole Survival Guide 91%
A black hole is curved void, not dense mass. Inside, the future ends and reality turns holographic.
by Janna Levin 2020
4.00
2k+ ratings
A Brief History of Time
by Stephen W. Hawking • 1988
A universe from nothing, glowing black holes, and the question physics still cannot answer.
4.21
483k+
A Brief History of Time Summary
A Brief History of Time 91%
A universe from nothing, glowing black holes, and the question physics still cannot answer.
by Stephen W. Hawking 1988
4.21
483k+ 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 91%
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 Last Three Minutes
by Paul C.W. Davies • 1995
The universe will die: here are the hows, and loopholes that might let intelligence outlast it.
3.80
1k+
The Last Three Minutes Summary
The Last Three Minutes 91%
The universe will die: here are the hows, and loopholes that might let intelligence outlast it.
by Paul C.W. Davies 1995
3.80
1k+ ratings
What Is Relativity?
by Jeffrey O. Bennett • 2014
Why time slows down, space shrinks, and gravity isn't a force: the plain-English version.
4.33
551
What Is Relativity? Summary
What Is Relativity? 91%
Why time slows down, space shrinks, and gravity isn't a force: the plain-English version.
by Jeffrey O. Bennett 2014
4.33
551 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 91%
The galaxy should teem with life. The silence hints we might be alone in asking why.
by Brian Cox 2014
4.28
5k+ ratings
Lost in Math
by Sabine Hossenfelder • 2018
Theoretical physics is stuck. The culprit isn't bad math, but a fixation on elegant theories.
4.05
3k+
Lost in Math Summary
Lost in Math 91%
Theoretical physics is stuck. The culprit isn't bad math, but a fixation on elegant theories.
by Sabine Hossenfelder 2018
4.05
3k+ ratings
Physics of the Impossible
by Michio Kaku • 2008
Sci-fi's wildest tech, sorted by a physicist: what's coming this century, and what breaks reality.
4.09
42k+
Physics of the Impossible Summary
Physics of the Impossible 91%
Sci-fi's wildest tech, sorted by a physicist: what's coming this century, and what breaks reality.
by Michio Kaku 2008
4.09
42k+ 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