The Adult Coloring Book Market in 2026: Read Past the Headline Numbers

If you look up the size of the adult coloring book market, you will find it confidently valued at $151 million, $1.2 billion, $1.8 billion, $2.5 billion and $3.2 billion, sometimes for the same year. Whatever those reports are selling, precision isn’t it.

So this post does something different. It ignores the headline valuations, takes the findings that every source agrees on, and asks what they mean if you draw, publish or sell these books.

The finding everyone agrees on: the middle is dead

Strip away the numbers and every analysis of the low-content market, coloring books, activity books, journals, planners, says the same thing.

Amazon has significantly increased scrutiny of low-content submissions, removing or penalising books deemed low quality or duplicative, and the category has become saturated with titles competing for the same keyword positions. The mass-production era is over: the 2020-era strategy of churning out generic notebooks with trending keywords is finished, and

Amazon’s quality review now rejects or suppresses books with duplicate interiors, misleading covers, or keyword-stuffed titles.

But the category itself isn’t dying. The market is maturing rather than dying, the broad wave of generic adult coloring books that flooded in between 2015 and 2019 has receded, leaving a healthier, more segmented market where specific niches keep growing while generic content stalls.

The pattern repeats in journals: a small percentage of higher-quality, content-rich books generate the majority of revenue, and highly specific books, a sobriety tracker for women in recovery, a daily log for beekeepers, a weekly planner for shift workers, face dramatically less competition and command premium prices, while generic lined journals face intense competition.

Read those together and the shape of 2026 is clear: the commodity middle has collapsed, and the value has moved to the two ends, genuinely specific content, and genuinely well-made objects.

We’d add a third finding from our own niche: left-handed colorists are an audience almost nobody serves. Top-bound books that let a left hand work without dragging across finished pages barely exist in the market. That’s the kind of specificity the data is pointing at.

Why growth is real even where the numbers aren’t

Whatever the true market size, the growth drivers the reports cite are observable without a research subscription.

Adults use coloring as stress relief and mindfulness practice; art therapy has risen as a recognised form of treatment; and people actively seeking less screen time are turning to analog activities. That last one matters most for physical books: the digital detox buyer is specifically buying paper. An app is not a substitute product for them, it’s the thing they’re avoiding.

And the demographic spread is wider than the “millennial wellness” framing suggests: the consumer base spans working adults, retirees and creative hobbyists.

None of that describes a fad. It describes a durable use-case that had a fad phase.

Journals and dateless planners: the quiet winner

The planner market has one finding that should change what anyone publishes.

A “2026 Planner” stops selling in January 2026. An undated weekly planner sells year-round, and unless there’s a calendar reason like an academic year, undated is the default recommendation. Undated outsells dated.

Think about what that does to the economics. A dated planner is inventory with an expiry date: every unsold copy in February is waste. An undated planner is backlist, printable in any month, stockable by a shop in any season, still saleable next year. For a small publisher printing in modest runs, that’s not a detail, it’s the whole risk profile.

The same analysis found the fastest-selling journal niches to be fitness and wellness, gratitude, prayer, dream, line-a-day, parenting, and work journals, specificity again, in a category where planners and journals grow steadily year over year because pen-on-paper tracking works differently than an app.

And the format trend runs toward substance: hybrid books that blur categories, workbook plus journal, activity plus reflection, outperform single-purpose designs, and hardcovers, colour interiors and keepsake-style books keep growing. One publisher reports retitling the same book from “planner” to “journal” and watching sales rise significantly, the object didn’t change, the promise did.

What this means if you’re the artist

The saturation story is told from inside the KDP ecosystem, and inside that ecosystem it’s true. But notice what “saturated” actually means there: per-title royalties on inexpensive notebooks and planners run $1–3 a sale, so the volume needed for meaningful income is significant.

That’s a description of a commodity market, and the escape routes the analysts recommend are exactly the things a small press does as a matter of course. Differentiated positioning.

Quality of object. Specific audiences. Buyers increasingly seek well-designed, unique books that provide genuine value.

A book with real artwork, decent paper, a binding chosen on purpose and a specific reader in mind isn’t competing with ten thousand template notebooks, whatever category the algorithm files it under. The saturation is real. It is also, happily, somebody else’s problem.

What this means if you’re a shop

Two of the findings translate directly to a counter.

Undated stock is shop-friendly stock. No January cliff, no seasonal write-down, restockable in July. A dateless planner or journal behaves like the rest of your inventory instead of like a calendar.

The premium end is where print survives. Every analysis points the same way, the cheap generic product is being commoditised online, and what holds value is the well-made object someone wants to pick up. A counter where the customer can feel the paper is precisely where that object sells, and it’s the one advantage no online listing has.

Where we sit in this, stated plainly

We publish adult coloring books, activity books, journals and dateless planners, made properly, for specific audiences, including ones the big lists ignore, like left-handed colorists. The market data above isn’t why we do it that way, but it is a reasonable explanation of why it works.

If you draw and you’ve been told the market is saturated: the commodity end is. The end you’d want to be on isn’t. Here’s what artists actually earn with us.

If you run a shop and you’re deciding what to put on the counter: here’s how stocking works, starting at three copies.

Figures and findings above are drawn from published market analyses and platform guides current to mid-2026, cited where used. Market-size valuations vary enormously between research houses and we deliberately haven’t relied on any single one.

Also worth reading: what the fiction and research market is rewarding, and the tutoring boom vs. the teaching rate.