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Best Shows to Learn a Language
Shows, channels & podcasts real teachers recommend, per language.
What Is Comprehensible Input?
The plain answer: what Krashen claimed, and how to tell if a clip is at your level.
Blog
Learning tips, what the data says about learning faster, and honest takes on tools and methods.
Research
Our studies of real native videos: speech speed, vocabulary, and hours to each level.
Find Comprehensible Input on YouTube
Channels & searches that surface CI, per language.
Prepare for Listening Exams
Curated video packs at exam level and speed.
Native Speakers (Contributors)
Help build the biggest comprehensible input catalog on the planet.
Language Teachers
Free lesson material and homework assignments using graded video.
Comprehensible Input Creators
Reach learners at the right level.
Language App Developers (Open Vocab API)
Vocabulary & comprehensible-input data API.
How to Start Learning the Persian Alphabet
Learn the Persian letters through these simple steps and build a small daily habit.
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