“A thrilling tour of potential cosmic doomsdays....Beyond her deep expertise, Ms. Mack’s infectious enthusiasm for communicating the finer points of cosmological doom elevates The End of Everything over any other book on the topic I have read.” —The Wall Street Journal

“Excellent, far-reaching...The book is the perfect antidote to the malaise of mundane worries.” —Science

“Mack turns the end of the universe into a starting point and delivers an accessible, enthusiastic survey of scientific forces. Lively and original, this is science writing done right.” —Publishers Weekly, Best Nonfiction of 2020

“Engrossing, elegant...Despite the book’s sobering title, [Mack] sprinkles in delightful esoterica along the way, while providing a guide to some of the most plausible scenarios about the end of the universe.” —The New York Times

“The End of Everything is a pleasure. Mack’s style is personal and often funny as she guides us along a cosmic timeline studded with scientific esoterica and mystery... I found it helpful — not reassuring, certainly, but mind-expanding — to be reminded of our place in a vast cosmos.” —James Gleick, The New York Times Book Review

“Mack offers a whirlwind tour of our possible demises and what investigating the options can reveal about physics. Through informal but rigorous prose, she describes the weird wrinkles and implications of these potential endings.” —Scientific American

“If you need a moment to be distracted from everyday life and journey to the deep cosmic future, I highly recommend The End of Everything. In it, Mack seems unable to help describing complex physics concepts as ‘fun’ and ‘cool.’ She is right, and her book is also fun and cool.” —New Scientist

“Far from being depressing, Mack’s account mixes a sense of reverence for the wonders of physics with an irreverent sense of humor and a disarming dose of candor.” —ScienceNews

“Reading about the ultimate death of the universe…will immerse you in the astonishing weirdness of our wider surroundings, and remind you of the ingenuity of scientists who have spent centuries trying to read the cosmic tea leaves.” —Vice.com

“In Mack’s hands, this speculation [about the end of the universe] makes for a fascinating story.… She is a talented communicator of complex physics, and the passion and curiosity about astronomy that have made her a popular speaker and Twitter presence are evident here.” —Nature

“[Mack] creates an accessible, easy-to-digest guide to how the universe might end, speaking in a casual way that feels like sitting down for coffee with a good friend — one who can break down the physics of destruction into bite-sized delights.” —Discover

“While there’s general agreement about the broad outlines of the Big Bang, there’s far less certainty about how everything will end, as Katie Mack expertly explains…[She] avoids getting too technical even when discussing frontiers of cosmology and theoretical physics, and keeps it entertaining as well.” —The Space Review

"An 'Interstellar'-level of mind-bending and eye-opening theories as to what the end of our universe could hold." —USA Today

“Mack takes an otherworldly subject—the death of the universe—and brings it down to earth....The End of Everything will delight both casual science readers and those looking for more in-depth analysis of theoretical astrophysics.” —BookPage

“Thinking through the science of end times is actually a thrill....Mack's pleasing writing style makes speculating about the death of the universe unexpectedly entertaining.” —Kirkus Reviews

“Anyone wondering what to read after Brian Greene’s Until the End of Time will relish this blend of wit and deep thought.” —Library Journal

“Mack’s endlessly entertaining survey is infused with a palpable love of her subject, and will transmit to readers the same joy she finds in exploring the wide and fascinating universe.” —Publishers Weekly, STARRED review

“The End of Everything combines deep thinking about physics and big-picture awe in the style of Carl Sagan.” —Randall Munroe, author of xkcd and What If?

“This book teaches you that the universe could end at any moment, but is so good that you will be rooting for it not to —at least, not until you finish the book. Katie Mack’s witty, lucid prose is endlessly delightful.” —Alexandra Petri, Washington Post columnist

“Everything dies, even the universe. But will it be a peaceful fading away, or a dramatic cataclysm? Scientists don’t know for sure, but Katie Mack provides an expert and entertaining guide to the possibilities. Who knew a book about the end of the universe could communicate so much passion for science?” —Sean Carroll, author of Something Deeply Hidden: Quantum Worlds and the Emergence of Spacetime

“Joyous, beautiful and strange. . . filled with brilliant moments where you just have to stop and stare out of the window for a while.” —Robin Ince, author of How to Build a Universe

“Katie Mack is a great scientist, a passionate inquirer of nature, a great companion in this exploration, full of wit and lightness. I have learned from her plenty of things I did not know. And I have found myself staring out of the window, meditating about the end of it all.” —Carlo Rovelli