Personal knowledge management has a long history. The Zettelkasten is a personal knowledge management system developed by sociologist Nilkas Luhmann. The personal knowledge management concept of a digital garden was developed by online creator Anne-Laure Le Cunff. The concept of a commonplace book has long been used by scholars and creatives to collect their ideas. Commonplace books were used to record all the interesting things the author read or thought In East Asia, the Chinese biji and Japanese zuihitsu were analogous to commonplace books.
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