A Zettelkasten — German for "slip box" — is a system of atomic, linked notes. Niklas Luhmann published 73 books and 400+ articles using one. Here is the modern, mobile-first version.
The four rules
- Each note holds one idea. 2. Each note links to other notes. 3. Notes are written in your own words, not quoted. 4. The collection grows over years, not months. Most "Zettelkasten" tutorials get all four wrong.
Atomic > comprehensive
A note that says "Burnout is increased by lack of autonomy" is more useful than a 2,000-word essay covering five concepts. The atomic note can be linked from anywhere. The essay can only be linked as a whole.
Mobile makes atomic easy
Phone screens force brevity. A note typed on an iPhone is naturally atomic because there is no room to ramble. Combined with auto-linking, this is the closest a digital tool has come to Luhmann's analogue rhythm.
How to start
Open the Notes tab. Capture one idea. Move on. Don't worry about structure. After 50 notes, evergreen patterns will start to emerge from the graph view. After 500, you'll have a working Zettelkasten.
Where to read more
Christian Tietze's zettelkasten.de overview is the canonical primer. Sönke Ahrens' "How to Take Smart Notes" is the standard book.
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