Zettelkasten

A Zettelkasten is a type of personal knowledge management system. It is a collection of notes or "slips" that are organized in a filing system to help the user recall and organize information. Zettelkasten was developed by German sociologist Niklas Luhmann in the 1960s and is based on the principles of the card catalog system. This system is designed to help the user store and recall information in an organized and efficient manner. The system is composed of individual slips of paper or note cards that each contain related information on a specific topic. These slips are then organized into a filing system based on keywords or topics. This system allows the user to quickly recall information and access related topics or notes with ease.