After achieving the B2 level, you are ready for the exciting challenge of C1 English. At this advanced stage, you can understand a wide range of demanding, longer texts and recognize implicit meaning. You can express yourself fluently and spontaneously without much obvious searching for words, and you can use English effectively for social, academic, and professional purposes.

To master the C1 level, you should aim for a vocabulary size of about 15,000 words — and we have intentionally selected and integrated the necessary vocabulary into our books to help you reach this goal. By reading our C1-level content, you will become a highly effective and proficient communicator, able to handle complex language tasks with confidence.