“Erudite, engaging, combative, crusading.” —New York Times Book Review (Editors’ Choice)

“Words that chill the parental heart… thanks to Mr. Haidt, we can glimpse the true horror of what happened not only in the U.S. but also elsewhere in the English-speaking world… lucid, memorable… galvanizing.” —Meghan Cox Gurdon, Wall Street Journal

“[An] important new book… The shift in kids’ energy and attention from the physical world to the virtual one, Haidt shows, has been catastrophic, especially for girls.” —Michelle Goldberg, The New York Times

“I found myself nodding along in agreement … benefits from… years of research on how smartphones and social media dice the nerves and tamp the spirits of young people … not just reasonable but irrefutably necessary.” —Jessica Winter, New Yorker

“A must-read for anyone raising, working with, or teaching young people today. It made me reflect on how much of my younger years—which were often spent running around outside without parental supervision, sometimes getting into trouble—helped shape who I am today. Haidt explains how the shift from play-based childhoods to phone-based childhoods is transforming how kids develop and process emotions. I appreciate that he doesn’t just lay out the problem—he offers real solutions that are worth considering.” —Bill Gates, GatesNotes

“Boundlessly wise… important and engrossing.” —Frank Bruni, New York Times Opinion

“All the suggestions sound sensible. Some even sound fun . . . Deals seriously with counter-arguments and gaps in the evidence.” —The Economist

“Can be quite wonderful… beautifully grounds his critique in Buddhist, Taoist and Christian thought traditions… His common-sense recommendations for actions…are excellent.” —Judith Warner, The Washington Post

“[An] important new book…The shift in kids’ energy and attention from the physical world to the virtual one, Haidt shows, has been catastrophic, especially for girls.” —Michelle Goldberg, The New York Times

“Informative and compelling…Haidt wants children to spend more time appreciating nature, playing with friends, riding and falling off their bikes, and doing age-appropriate chores.”—Glenn C. Altschuler, Psychology Today

“An urgent and essential read, and it ought to become a foundational text for the growing movement to keep smartphones out of schools, and young children off social media” —Sophie McBain, The Guardian (UK)

“Compelling, readable—and incredibly chilling . . . remarkably persuasive.” —Lucy Denyer, Telegraph (UK)

“A persuasive and rousing argument”—Anna Davis, Evening Standard (UK)

“If this important book rings enough alarms (wait, or is that just my phone pinging?) to make politicians impose a genuine social media ban on children, I believe most parents would be happy and most teenagers happier.” —Helen Rumbelow, The Times (UK, Book of the Week)

“Haidt sets out inarguable evidence that smartphones are fuelling an anxiety epidemic among young people—and big tech must do more to reverse it…an extremely important and compelling read that is recommended not only to parents but to anyone who has felt increasingly pressurised by technology…I can’t recommend this book highly enough; everyone should read it. It is a game-changer for society.” —Stella O’Malley, Irish Independent

“Jonathan Haidt is a modern-day prophet, disguised as a psychologist. In this book, he’s back to warn us of the dangers of a phone-based childhood. He points the way forward to a brighter, stronger future for us all.” —Susan Cain, #1 New York Times bestselling author of Bittersweet and Quiet

“An urgent and provocative read on why so many kids are not okay—and how to course correct. Jonathan Haidt makes a powerful case that the shift from play-based to phone-based childhoods is wreaking havoc on mental health and social development. Even if you’re not ready to ban smartphones until high school, this book will challenge you to rethink how we nurture the potential in our kids and prepare them for the world.” —Adam Grant, #1 New York Times bestselling author of Hidden Potential and Think Again, and host of the TED podcast Re:Thinking

“This is a crucial read for parents of children of elementary school age and beyond, who face the rapidly changing landscape of childhood. Haidt lays out problems but also solutions for making a better digital life with kids.” —Emily Oster, New York Times bestselling author of Expecting Better

“Every single parent needs to stop what they are doing and read this book immediately. Jonathan Haidt is the most important psychologist in the world today, and this is the most important book on the topic that’s reshaping your child’s life right now.” —Johann Hari, author of Stolen Focus

“This book poses a challenge that will determine the shape of the rest of the century. Jonathan Haidt shows us how we’ve arrived at this point of crisis with technology and the next generation. This book does not merely stand athwart the iPhone yelling ‘Stop!’ Haidt provides research-tested yet practical counsel for parents, communities, houses of worship, and governments about how things could be different. I plan to give this book to as many people as I can, while praying that we all have the wisdom to ponder and then to act.” —Russell Moore, editor in chief of Christianity Today