Language is not learned by willpower.
It is trained by a system.
I'm Lê Tất Đạt, a Vietnamese self-researcher and content creator. Through short videos, posts and two self-study ebooks, I help Vietnamese learners turn the English and Japanese they know into language they can use at work.
Not a teacher. Someone who froze in front of a guest, then worked out how to fix it.
At Hilton Okinawa, every shift was a test. American guests spoke directly, Japanese colleagues spoke between the lines, and I had a few seconds to answer the right way.
I understood every word the guest said. But when I opened my mouth, nothing came out.
After that evening I started researching how the brain takes in a language. I tested each method during real shifts, kept what worked and dropped what didn't. My content and my ebooks are the record of that process.
Three things, one goal
Everything I make starts from the same question. What does a Vietnamese learner need to actually speak at work, today?
Content
Short videos and posts on language learning, workplace communication, and the cultural gaps between Vietnam, Japan and the English-speaking world. Published mainly in Vietnamese.
Ebooks
Two interactive web ebooks with built-in roadmaps, progress tracking, furigana, and Anki-ready phrase banks. Version 2.0 was released in 2026.
1-1 roadmaps
Learners who buy both ebooks answer a detailed questionnaire, and I write a personal learning roadmap for them within 48 hours.
Two ebooks, two roles
Nghe Nhạy · Nói Bén
Listening and speaking reflexes. Shadowing on a 7-day cycle, the 20 English sounds Vietnamese speakers find hardest, Japanese pitch accent and keigo, and three 30-day plans.
Bứt Phá Ngoại Ngữ Trong Công Việc
English and Japanese for real work situations. Email and chat, meetings, phone calls, complaints, small talk and interviews, plus high- and low-context culture and 報連相.
Let's talk
For collaborations, interviews, media or anything else, email is the fastest way to reach me. I reply in English, Japanese or Vietnamese.