By: Nicholas Carlisle

In 2004, the average person could hold their attention on a screen for about two and a half minutes before switching to something else. By 2024, that number had fallen to 47 seconds.
Against that backdrop, here is something nobody predicted: teenagers – the generation raised on TikTok, Snapchat, and infinite scroll – are joining book clubs. Not reluctantly, for school. Voluntarily, in their own time, online. And they are doing it in the millions.

A World Built to Distract

To understand why this matters, you have to understand just how relentlessly the modern digital environment works against stillness.

Sentences in English literature have been shrinking for centuries. In the 1500s, the average sentence ran to 63 words. By 1950, it had fallen to around 14. Today, style guides – from the European Commission to the FAA – recommend staying under 20 words per sentence. Even the structure of language has bent toward our shortening attention.

Then came the smartphone. Research by Dr. Gloria Mark at the University of California found that in 2004, people spent an average of 150 seconds focused on a single digital task. By 2012, that had dropped to 75 seconds. By 2024, it had reached 47 seconds – roughly one-third of what it was two decades ago. Meanwhile, Common Sense Media found that the average teenager now spends eight and a half hours a day in front of screens.

This is the world teens are growing up in. Fragmented, fast, optimised for reaction rather than reflection.

The Loneliest Generation

Here is the other piece of the picture. According to the World Health Organization’s Commission on Social Connection, teenagers are now the loneliest demographic on the planet. One in five 13-to-17-year-olds reports feeling lonely – a higher rate than any other age group, including the elderly.

This is not purely a pandemic story. Research tracking US teenagers from 1991 onwards found that loneliness began rising significantly around 2012 – the same period in which smartphone ownership among teens took off. Teens were withdrawing from in-person socialising long before Covid forced everyone else to do the same.

The pandemic sharpened everything. Teen loneliness spiked 14% between 2019 and 2021. And while it has partially recovered since, a 2024 study found that among German teenagers, loneliness rates remain above pre-pandemic levels – still affecting one in five young people.

The connection between loneliness and academic performance is equally stark. Teens who report feeling lonely are 22% more likely to receive lower grades in school.

Lonely, distracted, and scrolling. That was supposed to be the story of this generation.

Then BookTok Happened

In 2020, as teenagers around the world were locked in their bedrooms, something unexpected emerged in a corner of TikTok. Readers – mostly young, mostly women – started posting videos about books. Short clips: a tearful reaction to a final chapter, a stack of novels arranged by colour, a passionate case for why you absolutely had to read this one next.

They called it BookTok.

What began as a niche has become a cultural force. The #BookTok hashtag now carries over 36 million videos and has accumulated more than 220 billion views. In a poll of over 2,000 young people aged 16 to 25, conducted by the UK Publishers Association, 59% said BookTok or book influencers had helped them discover a passion for reading. Waterstones, Britain’s largest bookseller, reports that fiction sales rose more than 12% in 2024, driven in significant part by young readers. Bookshops that were closing a decade ago are opening again. Fans have been lining up for midnight book launches – something not seen, observers noted, since the final Harry Potter novels.

BookTok helped sell an estimated 20 million printed books in 2021. That number doubled in 2022.

But the numbers only tell part of the story. The more interesting question is why.

What Teens Are Actually Looking For

It would be easy – and wrong – to treat BookTok as simply a marketing phenomenon, a new algorithm serving up recommendations. Something deeper is happening.

One in five BookTok users reports that the platform led them to discover a community. Sixteen percent say they have formed genuine friendships through it. As one English teacher put it: “You have the sense of community even if your best friends at school aren’t reading the same books as you. There is someone out there who is, and you can connect with them that way.”

This matters because what reading communities offer is fundamentally different from what most of the internet offers. Most online environments are built around performance – likes, follower counts, the anxiety of visibility. BookTok, and the quieter spaces it has seeded (online book clubs, Discord reading groups, virtual read-alongs), offer something rarer: a shared experience, a conversation slowed down enough to allow genuine reflection.

Developmental psychology has long held that belonging – feeling genuinely understood by others – is one of the most powerful protective factors against loneliness and anxiety. When a teenager in Manila discovers that a reader in Manchester felt exactly the same way about a fictional character’s grief, something real passes between them. Stories have always worked this way. They create what researchers call emotional recognition: the sudden sense that your inner life is not as singular, or as isolating, as you thought.

For neurodivergent children, for quiet children, for those who rarely raise their hands in class, the written discussion thread can be the first place they find that their thoughts are welcome. That is not a small thing.

The Question Worth Asking

It is tempting to read the BookTok phenomenon as pure good news – a wholesome counterpoint to the grimmer stories we usually tell about teenagers and screens.

But there is an uncomfortable question underneath it.

If millions of young people are seeking community through books and reading groups – often online, often with strangers they will never meet in person – what does that tell us about the quality of connection available to them in their daily lives? Why are so many teenagers turning to the internet to find the sense of belonging they cannot find at school, at home, in their neighbourhoods?

The rise of online reading communities is not only a story about books. It is a story about loneliness, and about the creative, often moving ways young people try to address it themselves when the adults in their lives have not yet found answers.

That does not diminish what BookTok and its communities have built. It makes it more significant, not less.

What This Asks of Us

For parents and educators, the BookTok moment carries a challenge.

Young people are telling us, in the way they spend their own free time, that they want depth. They want to be understood. They want to talk about things that matter – fear, loss, identity, belonging – and they have found fiction to be a safer vehicle for those conversations than direct disclosure.

If we are paying attention, that is an invitation.

Ask your teenager what they are reading. Sit with the question. Let them explain. The conversation that follows might tell you more about their inner life than any amount of screen-time monitoring.

The teenagers joining book clubs in their bedrooms are not escaping the world. They are searching for connection within it. The least we can do is meet them there.

Frequently Asked Questions

Are teenagers really lonelier than previous generations?

The evidence is striking – and the timing tells its own story.

Data tracking US teenagers across three decades, gathered by the long-running Monitoring the Future study, shows that loneliness among 8th, 10th and 12th graders held broadly steady from 1991 until around 2012. Then it began to rise – steadily, measurably, year on year. That inflection point coincides almost precisely with the mass adoption of smartphones among teenagers, and the shift away from in-person socialising toward online interaction.

This matters because it means the story did not start with Covid. The pandemic sharpened the crisis – teen loneliness spiked a further 14% between 2019 and 2021 – but it did not create it. Many researchers now argue that teenagers had already been rehearsing a kind of social withdrawal for years before lockdowns made it universal.

In 2025, the World Health Organization’s Commission on Social Connection published findings that put a number on where things stand today: 20.9% of 13-to-17-year-olds worldwide report feeling lonely – the highest rate of any age group on the planet, higher even than the elderly. Teens who report loneliness are 22% more likely to receive lower grades at school.

So yes: by the most reliable measures available, today’s teenagers are lonelier than their counterparts a generation ago. The reasons are contested – researchers debate the precise weight of social media, reduced in-person socialising, academic pressure, and economic anxiety – but the trend itself is not.

What is less often discussed is what teenagers are doing about it themselves. The rise of online reading communities, explored in this article, is one quiet answer to that question.

Does reading actually help with loneliness?

There is solid research suggesting it does – and the mechanism is more interesting than simply “books keep you company.”

A landmark 2013 study by psychologists David Kidd and Emanuele Castano, published in the journal Science, found that reading literary fiction strengthens what researchers call Theory of Mind – the capacity to understand the emotions, intentions, and perspectives of other people. Fiction, in other words, is not just entertainment. It is practice in empathy.

This matters for loneliness because one of its most corrosive effects is the belief that your own inner experience is uniquely strange or invisible to others. Stories push back against that belief directly. A teenager reading about a character’s grief, or shame, or longing to belong, may encounter – sometimes for the first time – the recognition that these feelings are not theirs alone. Psychologists call this emotional recognition, and research on belonging suggests it is one of the most significant protective factors against loneliness and psychological distress (Allen et al., 2021).

When reading happens in community – in a book club, a Discord group, a BookTok thread – something additional occurs. The conversation becomes a second layer of connection. A discussion about a fictional character can quietly become a discussion about real fears and real experiences, held at a safe distance by the frame of story.

For neurodivergent teenagers, or those with social anxiety, these spaces can be particularly meaningful. A child who rarely speaks in class may find it easier to type a thought into a discussion thread. And when that thought is met with recognition, something shifts – not just socially, but in how they see themselves.

Reading will not solve the loneliness epidemic on its own. But the evidence that it helps – and that shared reading helps more – is real.

What is BookTok, and is it safe for teens?

BookTok is the name given to the reading community that has grown up on TikTok, where users share book reviews, recommendations, reactions, and discussions through short videos. It emerged around 2019 and accelerated sharply during the Covid-19 pandemic, when teenagers at home rediscovered reading and began connecting with other readers online.

The scale of what has followed is remarkable. The #BookTok hashtag now carries over 36 million videos and more than 220 billion views. A UK Publishers Association survey found that 59% of 16-to-25-year-olds say BookTok helped them discover a passion for reading. Fiction sales rose more than 12% in 2024, driven largely by young readers. Bookshops that were struggling a decade ago are expanding again.

On the question of safety, the picture is nuanced. BookTok sits within TikTok, which carries the standard risks of any large social media platform – exposure to inappropriate content, the pull of addictive scrolling, and the performance pressures of likes and followers. Parents are right to be thoughtful about how their teenagers engage with TikTok broadly.

Within BookTok specifically, however, the community skews notably positive. It is driven by enthusiasm for stories rather than personal comparison, and its dominant tone tends toward warmth and recommendation rather than judgment. The content most teenagers encounter there is genuinely about books.

That said, not all books promoted on BookTok are appropriate for all ages. Some popular titles deal with mature themes – sexual content, graphic violence, suicide – that parents may want to be aware of before younger teens read them. The conversation between parent and teenager about what they are reading, and why it appeals to them, remains the most useful tool here.

BookTok, at its best, is one of the more constructive corners of social media for young people. Like any online space, it is worth understanding rather than simply allowing or banning.

References

  • Mark, G. (2023). Attention Span: A Groundbreaking Way to Restore Balance, Happiness and Productivity. Hanover Square Press.
  • Common Sense Media (2023). Media Use by Tweens and Teens.
  • World Health Organization Commission on Social Connection (2025). Report on Loneliness and Social Isolation.
  • Twenge, J. M. (Generation Tech, 2025). For teens, the loneliness epidemic is not a myth.
  • UK Publishers Association (2023). Survey of 2,000 young people aged 16–25.
  • Waterstones / Literature & Latte (2024). BookTok and Beyond: How Young Readers Are Reviving Physical Bookstores.
  • Kidd, D. C., & Castano, E. (2013). Reading literary fiction improves theory of mind. Science, 342(6156), 377–380.
  • Baumeister, R. F., & Leary, M. R. (1995). The need to belong. Psychological Bulletin, 117(3), 497–529.
  • Panickssery, A. (2025). Why Have Sentence Lengths Decreased? Substack.

 

Image Credit: Vitaly Gariev