For Anki specifically, see (How To) Create Good Anki Cards.
Articles on Spaced Repetition
- (DevonThink) Effective Spaced Repetition ← a technical, detail-oriented intro to Spaced Repetition
- (DevonThink) How To Remember Anything Forever-ish ← Nicky-case’s visual introduction to spaced repetition
- (DevonThink) Spaced Repetition for Efficient Learning · Gwern.net (reader mode) ← Gwern’s article on Spaced Repetition.