Language-learning guides
Short, practical guides to learning a language well: what the levels mean, how spaced repetition works, and a routine that fits into 15 minutes a day.
Language levels explained: CEFR A1–C2 and HSKWhat the CEFR levels A1 to C2 mean, how HSK levels for Chinese compare, and how to pick the right level for learning vocabulary.How spaced repetition works, and why it beats crammingSpaced repetition schedules each word to reappear just before you would forget it. Here is how it works and how to use it for vocabulary.How to learn a language in 15 minutes a dayA simple 15-minute daily routine for learning a language: review, new words, listening and speaking — and how to keep it going.
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