Quality guarantee
Recognized EU publisher. CEFR books, portal and screened teachers.
How we ensure quality
coLanguage is a recognized publisher, trusted by schools, libraries and companies across the European Union.
Official publisher
Registered publisher. ISBN books in official EU distribution.
- Co-written with EU exchange partners in seven countries.
- University methodology for adult education.
- Trusted by schools and companies in the EU.
CEFR programs from A1 to C2
Grammar and vocabulary follow CEFR. Each level targets official exams.
- Matches DELE, DELF, NT2, Goethe and CILS.
- Structured speaking practice.
- Same levels in portal, book and classes.
Screened teachers
Each teacher is screened, interviewed and trained by us. Not an open marketplace.
- Linguistics degree or proven experience.
- Training on materials and lesson prep.
- Level test before you start.
Book and portal as one system
One curriculum in book and portal. Same content for teachers and students.
- Translations for multilingual classes.
- AI and media corrections in the portal.
- Progress saved in your portal.
Feedback improves the curriculum
Students and teachers use coLanguage weekly. Feedback improves books and exercises.
- Students rate lessons after each cycle.
- Teachers report class needs to our curriculum team.
- Portal and course books update together.
Exchange programs with European universities
We organize exchange programs with leading European universities to write our course books.
- Co-authors from partner universities across the EU.
- Books developed during structured academic exchange programs.
- CEFR-aligned methodology for adult language education.
Trusted across the European Union
In bookstores across Europe. For schools, companies and adult learners.
Available at and trusted by:
Start your structured course now
CEFR programs for adults. Self-study or classes with a screened teacher.
What students say
- 4.6/5
Not flashy, just consistent. The course book and portal follow one line; that matters more than random exercises.
- 4.9/5
Preparing for an exam while working full time. Audio with translation makes revision realistic on short breaks.
- 4.7/5
I use the book on the train and the portal in the evening. English fits around my job without extra planning.
- 4.4/5