The charting method is the specialist of note-taking systems: it captures information as a table. Columns are the dimensions you care about; each row is one item, filled in across those columns. When the material is comparable, nothing beats it for later scanning.
How it works
Set up columns before or during capture — the categories that matter — then log each item as a row:
| Battle | Year | Who won | Why it mattered |
|---|---|---|---|
| … | … | … | … |
The grid does two jobs at once: it captures the facts and pre-sorts them for comparison.
Why it works
Comparison is the hardest thing to reconstruct from linear notes — you'd have to hunt across paragraphs to line up "who won" for every battle. A chart puts that comparison on the page as you write, which is why it doubles as a ready-made review and self-test tool: cover a column and recall it row by row.
Where it shines — and where it doesn't
Charting is unbeatable for comparable, categorical information: historical events, drug interactions, product features, pros-and-cons, anything with repeating attributes. It's useless for narrative or exploratory material that doesn't fit a grid — a discussion, an argument, a stream of ideas — where the outline method or mapping fit better.
Doing it digitally
This is one place a plain notes app struggles and a spreadsheet or database shines. But most people don't need a formal table — they need to compare a few things once. Our own app comparisons lean on charts for exactly this reason: a quick "at a glance" table answers the question faster than any paragraph. Reach for charting when the question is "how do these stack up?"