The workbook "Secure in Grammar" is ideally suited for targeted and systematic grammar training at the upper secondary level. Students review the knowledge acquired in lower secondary school and further expand upon it. The most important rules are presented in a learner-friendly manner and illustrated with numerous examples. The close connection between grammatical structures and texts is made clear through many predominantly authentic texts and materials. The aim of this volume is not the isolated practice of structures, but rather the correct writing in relation to text production in upper secondary school and the final exams. For this purpose, numerous exercises with solutions are available.