Aim for concise nodes that convey the core idea—single words or short phrases work best. Too much text makes the map dense and reduces quick scanning; too little may lose meaning. Use notes or attachments for extended descriptions.
Guidelines:
For projects or study maps, you can add a bit more detail (dates, short tasks), but keep the main structure readable. If a topic needs extensive explanation, link to a document or create a nested sub-map to keep the primary map uncluttered.