TKT: Knowledge About Language tests a candidate's knowledge of the language systems needed by teachers for planning and teaching their lessons, how the different features of English work from a teaching perspective and focuses on the teacher's awarenessof the language needs of learners, and the difficulties involved in learning a second language. The Teaching Knowledge Test (TKT) is also suitable for other pre-service or in-service English teachers wishing to improve their knowledge and understanding of the English language.