Touchstone Second edition is an innovative four-level American English course for adults and young adults, taking students from beginning (A۱) to intermediate (B۱) level. Touchstone uses a corpus-informed syllabus ensuring students are learning the language that people really use. Activities include a strong focus on inductive learning, personalized practice, and encouraging learner autonomy. Each Students Book contains approximately ۹۰ hours of material across ۱۲ topic-based units - with additional grammar and pronunciation practice added for the Second Edition. Students Book, Level ۴ is at the intermediate CEFR level (B1-B2)