C1 English users are advanced users of English. They can read and write in complex English at the workplace or while studying. Level C1 English writers should be able to write properly structured proposals, essays, articles and reviews on complex topics which are easily understood.
Lessons for CEFR C1 level written English include practicing writing text which is well structured and easy to understand on a variety of subjects, including complex topics. In addition to emails used extensively for online communication, the practice exercises also include writing essays, articles, reviews, reports, proposals and other text content on various themes. Usually a model text is provided and the student is assigned related writing tasks as part of the exercise.