The essentials
TBR — "to be read". Your pile of unread books, physical or listed. Usually far larger than anyone's remaining lifespan; we wrote about that in building a to-read list you actually read.
DNF — "did not finish". Both a verb and a status: I DNF'd it at page 60. Not an insult, and abandoning books freely is a sign of a healthy reader.
ARC — "advance reader copy". A pre-publication copy sent to reviewers. ARC reviews carry a disclosure requirement in most places.
Buddy read — two or more people reading the same book at the same pace, informally. The most sustainable book-club format there is.
Reading slump — a period where nothing holds your attention. Extremely common; see how to get out of one.
Romance shorthand
HEA — "happily ever after". The genre's core promise. HFN — "happy for now", a softer version. Slow burn — a relationship developing over a long stretch, with the tension as the point. Insta-love — the opposite, usually said critically. Third-act breakup — the near-obligatory late separation before reconciliation. Spice — how explicit a book is, often rated in chilli peppers. Trope-specific terms are covered in enemies to lovers and other tropes.
Where readers gather
BookTok — the book side of TikTok, now a genuine force in what sells; it revived several backlist novels years after publication. Bookstagram — the Instagram equivalent, more visual, more about shelves and covers. BookTube — long-form video reviews and hauls.
Format words
Backlist — everything a publisher has released that isn't new. Frontlist — the new releases. Standalone — a book requiring no others. Doorstopper — a very long book. Palate cleanser — something light read between heavy books.
Writing-side terms you'll see
WIP — "work in progress". Beta reader — someone reading a draft to give feedback before publication (how to get useful feedback). Pantser and plotter — writing without a plan versus outlining (compared here). Serial — a story published in instalments (explained here).
None of this is gatekeeping. It's just shorthand that grew up between people who talk about books a lot — and now you have it.
Skip the decoding — talk to someone on your chapter. Get Arwy.