He opened a language school in Beverly Hills called the "Polyglot Institute" (later renamed "The Michel Thomas Language Center") and developed a language-teaching system known as the "Michel Thomas Method", which he claimed would allow students to become conversationally proficient after only a few days' study.
Otvoril si jazykovú školu v Beverly Hills pod názvom "Polyglot Institute" (neskôr premenovaná na "The Michel Thomas Language Center") a vynašiel nový systém učenia jazykov známy ako Michel Thomas Method (metóda Michela Thomasa), ktorá, ako sám vyhlasoval, má naučiť študentov vedieť veľmi dobre konverzovať už po pár dňoch štúdia.