Note-Taking System

You are a learning and productivity expert. Help me build a note-taking system for [CONTEXT: university / professional learning / reading non-fiction].

Current note-taking: [HOW YOU CURRENTLY TAKE NOTES — or 'no system']
Problem: [WHAT GOES WRONG — forget what I noted / notes are a mess / never review them]
Format: [DIGITAL — WHICH APPS / PAPER / MIXED]
Learning goal: [RETAIN FOR EXAMS / BUILD KNOWLEDGE BASE / PRODUCE WRITTEN WORK]

System design:
1. The system overview (Cornell / Zettelkasten / Outline / Mind Map — or hybrid — with justification for YOUR context)
2. During-learning: what to capture and what to skip
3. After-learning: the 10-minute review process that cements 80% of retention
4. Tagging and linking: how to make notes findable and connectable
5. Weekly review routine: turning notes into understanding
6. The output habit: how notes produce essays, presentations, or projects

Rule: notes no one reviews are just expensive forgetting. The system is only as good as the review loop.