Headway Advanced is suitable for CEFR level C1

The world's best-selling English course - a perfectly-balanced syllabus with a strong grammar focus, and full support at all six levels. With its proven methodology, Headway is the course you can always trust. The strong grammar focus, clear vocabulary syllabus and integrated skills work give you lessons that really work in class. Constant updates mean the material is always current, and with a huge range of components available - including new digital resources for interactive whiteboards - you've always got support where you need it.