August 9 is National Book Lovers Day.
It's a day that celebrates books in every form. Yet in an age when an entire library can fit inside a phone, why do so many people still choose to sit down with a printed book when they want to learn, reflect, or seek wisdom?
Is it simply nostalgia? A preference for the feel of paper? Or is there something more?
Interestingly, scientists have been asking the same question. Over the past decade, researchers from around the world have explored whether reading on paper and reading on screens affect our brains differently. While digital books have transformed access to knowledge, growing evidence suggests that printed books offer unique advantages when it comes to deep reading, comprehension, and memory.
Perhaps the enduring appeal of a printed book isn't merely about tradition. It may also reflect the remarkable way our minds engage with the written word.
What Science Is Discovering (build out to a separate section)
📍 Printed Books Help the Brain Build a "Mental Map"
Have you ever remembered that a favorite quotation appeared near the bottom of the left-hand page? That isn't simply imagination. It's your brain using physical landmarks to build a mental map of what you've read.
A 2024 meta-analysis reviewing 49 studies found that readers generally performed better on comprehension tests after reading printed material, particularly when the text was longer or more demanding. Researchers believe printed books provide physical and spatial cues—such as page layout, reading progress, and the location of text—that help the brain organize and retrieve information more effectively.
🧠 Slower Reading Can Lead to Deeper Understanding
The same review found that people generally move through digital text more quickly than printed text. While speed can be an advantage when scanning information or looking up facts, it doesn't necessarily lead to deeper understanding.
Researchers found that when reading longer or more complex material, readers of printed books often demonstrated stronger comprehension and retained information longer. The slower pace of reading on paper encourages reflection rather than simply moving the eyes across the page.
⚡ Your Brain May Work More Efficiently on Paper
A 2026 brain-imaging study compared participants reading the same material on paper and on tablets. Those reading printed books answered more complex questions more quickly while showing more efficient patterns of brain activity. Tablet readers recruited additional brain regions, suggesting greater cognitive effort during reading.
Researchers believe the tactile and spatial experience of paper helps readers build stronger mental representations of what they read while naturally reducing competing distractions.
🎯 Screens Can Sometimes Make Us Overconfident
Another interesting finding involves metacognition—our ability to judge how well we understand what we've learned.
Several studies have found that people reading on screens often feel more confident about their understanding than later test results justify. Readers using printed books, by contrast, tend to assess their comprehension more accurately.
In other words, we may think we've absorbed more from a screen than we actually have.
More Than Information
These scientific findings reminded me of something I've experienced many times while reading Zhuan Falun.
On several occasions, when I was struggling with a question in cultivation or facing a difficult situation in life, I opened the book—not searching for a particular passage—and it naturally opened to words that spoke directly to what I needed at that moment. The guidance was so timely and so precise that it left a lasting impression on me.
I wasn't trying to test the book or look for something extraordinary. It simply happened, more than once.
Science can help explain why printed books may improve memory, comprehension, and attention. My own experience points to something different—something that cannot be measured in a laboratory.
For readers who are just exploring Falun Dafa or those who have been practicing it for years, Zhuan Falun is far more than a collection of ideas. It is a book that countless readers have found to be profoundly meaningful, often offering insight precisely when it is needed most.
Whether science will one day explain experiences like these remains to be seen. For now, they remain deeply personal—and deeply treasured.
Finding the Right Place for Both
None of this means we should abandon digital books. In fact, they have made timeless teachings more accessible than ever, allowing us to read wherever life takes us.
Printed books and digital books each have their strengths. A digital book helps us make use of every available moment. A printed book encourages us to slow down and focus.
Ultimately, the question isn't whether we read on paper or on a screen. It's whether we make time to read with attention, sincerity, and an open heart.
For Readers Interested in the Research
The ideas discussed in this article are based on a growing body of research comparing reading on paper with reading on digital devices. Here are a few of the studies that informed this article.
Ackerman, R., & Lauterman, T. (2012). Taking reading comprehension exams on screen or on paper? A metacognitive analysis of learning texts under time pressure. Computers in Human Behavior, 28(5), 1816–1828. https://doi.org/10.1016/j.chb.2012.04.023
Mangen, A., Walgermo, B. R., & Brønnick, K. (2013). Reading linear texts on paper versus computer screen: Effects on reading comprehension. International Journal of Educational Research, 58, 61–68. https://doi.org/10.1016/j.ijer.2012.12.002
Mangen, A., & van der Weel, A. (2016). The evolution of reading in the age of digitisation: An integrative framework for reading research. Literacy, 50(3), 116–124. https://doi.org/10.1111/lit.12086
Salmerón, L., Altamura, L., Delgado, P., Karagiorgi, A., & Vargas, C. (2024). Reading comprehension on handheld devices versus on paper: A narrative review and meta-analysis of the medium effect and its moderators. Journal of Educational Psychology, 116(2), 153–172. https://doi.org/10.1037/edu0000830
Umejima, K., Sunada, Y., & Sakai, K. L. (2026). Manga reading on paper vs. digital devices: Prospective effects on core and supportive integration processes in the brain. PLOS ONE, 21(6), e0349778. https://doi.org/10.1371/journal.pone.0349778