Can You Sell Bookmarks on Etsy? The BookTok Title Trap and the 'You Can't Trademark a Book Title' Myth

Bookmarks are one of the friendliest products on Etsy: cheap to make, cheap to ship, easy to personalize, and impulse-bought by the handful. They're also riding the biggest reading wave in a decade. BookTok turned "romantasy" into a genre that moves millions of copies, and every one of those readers wants a laminated tassel bookmark that signals which series owns their whole personality this month.

So the honest answer first: yes, you can absolutely sell bookmarks on Etsy. A blank bookmark, a floral bookmark, a "just one more chapter" bookmark, a bookmark with your own illustration of a dragon — all fine. The product itself is never the problem. The problem is what you print on it, and the single most expensive misunderstanding in this niche is the belief that a book title is free real estate.

The myth that gets bookish shops taken down

Walk through any BookTok seller group and you'll hear the same reassuring line repeated like scripture: "You can't copyright a book title, so I can put it on whatever I want."

Half of that sentence is true. The other half will get your listing pulled.

It's correct that a title, on its own, is not protected by copyright. Copyright doesn't cover names, titles, or short phrases — the Copyright Office says so directly (37 CFR §202.1). "A Court of Thorns and Roses" as a string of words is not a copyrightable work. Neither is "Fourth Wing." So far, so good.

The trap is that copyright is not the only right in the room. Titles get protected by trademark instead — and trademark works on completely different rules. It doesn't care about originality, it doesn't expire on a schedule, and it exists specifically to stop the public from being confused about who stands behind a product. That's the whole reason a bookmark is risky in a way that a plain quote card sometimes isn't: a bookmark that says a series name is telling shoppers, in effect, "this is the [Series] product," and that's exactly the confusion trademark law is built to police.

The fix in one line: stop asking "can they copyright this title?" and start asking "is this title a registered trademark for merchandise?" Those are two different questions, and the second one is the one that gets your listing removed.

Single book vs. series: the line nobody explains

Here's the doctrine that actually decides these cases, and it's one almost no bookish seller has heard of.

The U.S. Patent and Trademark Office draws a hard line between the title of one creative work and the title of a series. The title of a single book cannot be registered as a trademark at all — it's refused under the Trademark Act, and has been since In re Cooper, 254 F.2d 611 (C.C.P.A. 1958). The reasoning is elegant: a single book's copyright eventually expires and the book enters the public domain, and at that point everyone must be free to call the work by its name. You can't let one company own the only word the public has for a book forever (see the USPTO's own guidance in TMEP §1202.08).

But the moment a title covers more than one work — a series — the rule flips. Series titles can be registered, because now the name identifies a source of many products, not just one book. The USPTO's stock examples are "The Chronicles of Narnia," "The Twilight Saga," and NPR's "All Things Considered." Each is a series, so each is a protectable mark.

Now map that onto BookTok, because it maps perfectly:

• A standalone novel's bare title is the weakest thing to worry about on its own. It's not copyrightable and usually not registrable as a trademark. That's the grain of truth in the myth.
• A series name is a different animal. "A Court of Thorns and Roses," "Fourth Wing" (part of the Empyrean series), "Throne of Glass," "Harry Potter" — these name whole product universes, which is exactly what trademark protects. Putting a series name on a bookmark is trademark use of someone else's mark.

And BookTok's entire economy runs on series, not standalones. The very titles sellers most want to print are the ones most likely to be protected. That's not bad luck; it's the doctrine working as designed.

The BookTok names that are already locked down

This isn't theoretical. The two biggest engines in the romantasy space are actively fencing off their merch rights.

Sarah J. Maas's "A Court of Thorns and Roses" has sold more than 75 million copies, and the #ACOTAR tag has close to two million TikTok posts. For years, unofficial fan merch was effectively a free arm of the brand — Etsy sellers slapping the name on candles, shirts, and bookmarks. That era is closing. Maas operates a company called Fireheart Inc., and it has been filing trademark applications that position it to shut unlicensed fan merch down. "Fan-friendly for years" is not the same as "licensed," and a rights holder can flip from tolerating to enforcing without warning — usually right as a series peaks and the merch money gets serious.

Rebecca Yarros's "Fourth Wing" (Empyrean series) tells the same story from the other direction: since 2023 it has sold more than 12 million copies and now has a real officially licensed merchandise program, including tie-ins with Hasbro and Goliath and a growing roster of licensed Etsy sellers. When an official program exists, unofficial listings don't just risk a takedown — they compete directly against the rights holder's own paying licensees, which is exactly the situation enforcement teams hunt for.

If you want the fullest illustration of how far this goes, look at Warner Bros. and Harry Potter. WB doesn't just own "Harry Potter" as a series mark — it holds registrations on the invented words inside the books. MUGGLE is registered for clothing. QUIDDITCH was filed back in 2009 for bed linens. "Hogwarts," "Gryffindor," "Slytherin," "Butterbeer," and "Platform 9¾" are all treated as protected marks. In 2025, Warner Bros. sued a large group of online sellers over Harry Potter merch and pushed marketplaces like Amazon, Walmart, and Temu to disable the listings. A bookmark that says "Slytherin" or "Muggle" is using a registered trademark just as squarely as one that says "Harry Potter" — a point we cover in depth in our Harry Potter / Warner Bros. seller guide, and the individual house names have their own trademark guide page too.

Worth knowing (it cuts your way): even Warner Bros. loses sometimes. The USPTO refused WB's attempt to register a Harry Potter quote as a trademark — a short phrase from a single scene doesn't function as a brand. That's the flip side of the doctrine: not everything a famous rights holder touches is ownable. But "not registrable" doesn't mean "safe to print," because copyright, character rights, and cover-art rights can still apply.

The four layers that stack on one little bookmark

A bookmark looks simple, but a BookTok bookmark can carry up to four separate rights at once. Miss any one and the whole listing is exposed.

1. The series name (trademark). Covered above. Series titles, house names, invented terms like "Muggle" or "Butterbeer," and faction names are trademark use.

2. Quotes and passages (copyright). A single title isn't copyrightable, but a line from the book often is once it's more than a few generic words. "Whatever our souls are made of, his and mine are the same" is a sentence from a protected novel, not a free-floating saying. Short, generic bookish phrases ("just one more chapter," "book hangover," "currently reading") are fine — they're too short and too common to own. Distinctive multi-word lines from a specific book are not.

3. Character depictions and cover art (copyright). If you draw the dragon, the character, or the cover scene, you're making a derivative of copyrighted artwork — even in your own art style. Reusing a publisher's cover font, deckle-edge design, or sprayed-edge motif can pull in trade dress on top of that. Your own original illustration of a generic dragon is yours; a recognizable rendering of a specific book's character or cover is not.

4. The author's name (trademark + publicity). Author names function as brands and are frequently registered. Printing "Sarah J. Maas" or "Rebecca Yarros" on a bookmark is using the author's mark to sell your product, and living authors also carry a right of publicity in their name and likeness. "Officially licensed" author merch exists precisely because the name itself is valuable and controlled.

The reason all four matter is that Etsy's enforcement doesn't just read your title. A takedown can trigger on a word buried in your tags or hidden in your description. Sellers routinely scrub the title, then leave "ACOTAR," "Fourth Wing," "Slytherin," or an author's name in the tags to catch search traffic — and that's exactly what brand-protection crawlers and Etsy's own filters scan. If you're going to be careful, you have to be careful across the title, the tags, and the description, not just the headline. A full-listing check that reads all three fields is the only kind that reflects how enforcement actually works.

Where the safe lane actually is

None of this means the bookish niche is closed. It means you compete on your own creativity instead of borrowing someone else's brand. The bookmarks that sell well and never get pulled tend to look like this:

• Genre and mood, not series. "Romantasy reader," "morally grey characters," "smut o'clock," "enemies to lovers" — these describe a vibe, not a protected product line, and BookTok shoppers search them constantly.
• Original art of generic subjects. Your own dragon, your own moody castle, your own hand-lettered "one more chapter." Generic fantasy imagery you drew is fully yours to sell.
• Public-domain literature. Austen, the Brontës, Poe, Shakespeare, Dracula — the classics are out of copyright, and their plain titles were never registrable as single-work trademarks anyway. Printing "Pride and Prejudice" or a Poe stanza is a genuinely open lane, with the nuances laid out in our guide to selling public-domain art and classic literature. (Watch for modern editions' cover designs and translations, which are protected.)
• Personalization the buyer owns. A reader's own name, their own reading stats, their TBR list. Nothing borrowed, nothing to enforce against.

Think of it as a swap: give up the series names, and in exchange you get a catalog nobody can send a takedown for. The sellers who survive the next enforcement wave in this niche are the ones building a brand of their own instead of renting the glow off someone else's.

For a broader look at the whole bookish category — candles, shirts, art prints, and the licensing that governs them — start with our BookTok and bookish merchandise guide, and if you sell anything in the Wizarding World orbit, read the Harry Potter seller guide before you list. The reading trend isn't going anywhere. Build a shop that can ride it without being the next name on a rights holder's spreadsheet.