Any Zettelkasten is based on the work of Niklas Luhmann, a sociologist. He was a prolific writer, and attributed much of his abundant creativity to his use of a slip box (see Niklas Luhmann’s Card Index: Thinking Tool, Communication Partner, Publication Machine.
His slip box (a filing cabinet of cards – hence zettle (note) kasten (cupboard)), was unique because instead of filing the cards in a typical hierarchical way, he gave each card a unique identifier (usually a date number) and then cross-referenced this note to other related ideas as they emerged.
Advocates of Zettelkasten have developed a set of Zettelkasten Principles which govern the methodology. These include:
- A note should be Atomic which means that a note (zettle) should only be about a single concept or idea
- A note should be Densely Linked because hyper-linking is the power of a Zettelkasten because linking creates a network of linked ideas or concepts.
- A note should be Concept Oriented. Rather than make notes about authors or titles of books, make your note concept oriented so that you can engender many more links from disparate sources which link to the same concept. This is one of the drivers behind what I call Creativity Activation.
- A note should be organised using Associative Ontologies. You can’t forecast where a concept will lead you over time. So rather than creating folder in advance, you should let your ideas evolve and take shape over time. The pattern will become clearer the more links you make.
- Niklas Luhmann’s Card Index: Thinking Tool, Communication Partner, Publication Machine.
- Zettelkasten.de Introduction
- Evergreen Notes Should Be Atomic – Andy Matushak
- Maggie Appleton’s Evergreen notes
- Evergreen Notes Should be Concept-Oriented- Andy Matushak
- Evergreen note titles are like APIs – Andy Matushak
- Evergreen Notes Defined