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slang.fyi

annotating

/ˈænəteɪtɪŋ/

Common

Writing notes, reactions, or highlights directly in a book while reading it.

Divides readers. Some treat writing in books as sacrilege. Annotating culture on BookTok frames it as engagement, creativity, and self-expression.

Real-world examples4 examples
#ExampleWhat it meansSource
01i annotate every book i love, can't help itThe speaker marks up books they care about as a natural habit.tiktok, 2024
02people who say don't write in books have never experienced annotatingAnnotating is worth 'ruining' a pristine copy because of how it enhances reading.x, 2024
03my annotated copy of this book is embarrassing, every page is coveredThe book is full of personal notes and reactions.instagram, 2023
04started annotating this one and now i'm actually understanding it betterWriting notes improved comprehension of a difficult book.reddit, 2023

Use it when

  • Someone writes notes in their book margins while reading.
  • A reader uses sticky tabs and highlighters to mark passages.
  • Someone shares photos of their marked-up book pages.

Do not use it when

  • You mean writing a review or summary after finishing a book.
  • You mean adding notes to a digital document.

Variations and related forms

annotated copy

A book that has been written in and marked up by its reader.

Origin and context

The practice is centuries old, but annotating as a BookTok aesthetic and community identity emerged around 2021-2023, driven by creators sharing heavily marked-up pages.

First seen
2021
Confidence
medium

Cite this page

Use this stable URL to reference the entry.

https://slang.fyi/annotating
Updated: 2026-08-28License: CC BY 4.0

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