Retention

How to annotate a book for fun

Annotating for pleasure is not annotating for an exam. The point is to notice more and remember more, with the smallest system that does not become a chore.

A paperback page with a highlighted passage and the same passage saved as a note at page 88
Whether the mark is in pencil or in a photo, it needs the same three things: the passage, the page, and a word about why.

The short answer

To annotate a book for fun, keep the system small enough to survive: a pencil for underlining and margin words, four tab colours with a key written inside the front cover (say, quote / idea / question / loved it), and one line on the inside back cover when you finish. Mark what stops you, not what seems important; a book with thirty marks is more useful than one with three hundred. For books you cannot write in — library, borrowed, beautiful — use removable tabs and photograph the pages you would have marked.

  • Pencil over pen or highlighter. Erasable, does not bleed, reads as a conversation rather than a verdict.
  • Four colours, not eight. A key you cannot remember is a key you will not use.
  • Margin words, not margin essays. "Yes", "no", "cf. ch. 3", a question mark.
  • Copy the best five marks out when you finish, with page numbers, or they stay in the book forever.
In this article
  1. Why annotate at all?
  2. What should you mark?
  3. A four-colour tab key
  4. Pencil, pen or highlighter?
  5. What goes in the margin?
  6. How do you annotate a book you can't write in?
  7. How do you keep annotations findable?
  8. Common questions

Why annotate at all?

Two reasons, and neither is the exam. Marking a passage forces you to decide whether it is worth marking, and that decision is attention — the thing wandering minds lack. And a book you have marked is a book you can return to: the underlines are a map of your own reading, and rereading them a week later is the cheapest known way to remember what a book said.

What should you mark?

What stops you. A sentence you reread because it was beautiful. A claim you disagree with. A passage that explains something you had half-understood. A word you want to look up. The moment you laughed. Do not mark what seems important in an abstract way — "the thesis", "a key theme" — unless it also stopped you. Importance is for the exam; stopping is for you.

A rule of thumb: if you are marking more than one passage every three or four pages, you are highlighting, not annotating, and the marks will mean nothing later.

A four-colour tab key

A four-colour annotation key
ColourMeaningExample margin note
YellowA line worth quotingthe sentence itself, underlined
GreenAn idea or argument to think about'cf. Kahneman', 'is this true?'
BlueA question, a word, something to look up'?', 'lookup', a name
PinkLoved it — the scene, the joke, the turn'!', a heart if you must

Write the key inside the front cover of every book you annotate, even if it is the same key every time. In two years you will not remember, and the book should explain itself.

Pencil, pen or highlighter?

Pencil. It erases, it does not bleed through thin paper, and a pencilled margin reads as a conversation with the book rather than a verdict on it. Highlighters are for textbooks and look shouty in a novel; if you love the look, use one colour, lightly. Pen is for people who are certain, and rereading your own certainties from five years ago is a humbling experience.

What goes in the margin?

Words, not sentences. "Yes." "No." "Cf. chapter 3." "Who?" A question mark. An arrow to the sentence above. The margin is for reactions, not essays; the essays go in the journal, with the page number. If you find yourself writing a paragraph in a margin, you have found something worth a real note — stop, write it properly, and put a tab on the page.

How do you annotate a book you can't write in?

Removable tabs while reading, then photograph the tabbed pages before the book leaves your hands. On-device text recognition turns the photo into the passage, attached to the book and the page, and you trim it to the lines you meant. It is faster than copying by hand and, unlike a pencil mark, searchable. The separate guide to notes without writing in books covers the five methods.

1 Read with a pencil in hand Underline what stops you; a word in the margin. 2 Tab the page Colour by the key inside the cover. 3 Finish: one line inside the back cover What it was about; what you took. 4 Copy the best five out With page numbers, into your journal or tracker. 5 Look back a week later Two minutes with the tabs. This is the step that makes it stick.
The whole method. Step four is the one people skip, and it is the one that turns marks into memory.

How do you keep annotations findable?

Marks stay in the book, and the book goes back on the shelf, and that is the end of them unless you do one thing: copy the best few out when you finish, with page numbers. Five quotes and one line per book, in one place, is a searchable record of everything you have read. Photographing the tabbed pages does this in a minute; typing them takes ten and is still worth it.

In Pensovo Photograph a page and the passage becomes a highlight anchored to that page — the digital copy of your pencil mark. Add a word about why, and it sits with the book alongside your finish-line note.

Common questions

Is it okay to write in books?

In your own, yes. Annotating is a way of reading, not vandalism. Use pencil if you want to keep the option of erasing, and never write in a book you borrowed.

What do the tab colours mean?

Whatever you decide, as long as you write the key inside the cover. A common scheme is yellow for quotes, green for ideas, blue for questions or words to look up, pink for moments you loved.

Should I annotate fiction?

Lightly. Underline the sentences that stop you, tab the scene you will want to reread, and write one line at the end. Heavy annotation kills a novel.

How do I annotate without ruining the book?

Pencil, lightly, and removable tabs rather than sticky notes with strong glue. Or leave the book clean and photograph the pages you would have marked.

What supplies do I need to annotate?

A pencil and a pack of four-colour removable tabs. Everything else is decoration.

How do I remember what I annotated?

Copy the best five marks out when you finish, with page numbers, and read them once a week later. Marks left in the book are marks you will never see again.

Amol B

Builds Pensovo, a free reading tracker for people who read real books. Writes here about keeping a reading habit and remembering what you read.

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