Target group: Adolescents and young adults in Germany and abroad with no prior knowledge. Learning objective: Leads to the levels A1, A2, and B1 of the European Framework in three volumes and prepares for the exams of the respective language levels. Deutsch.com is developed by a young, dynamic team of authors, with Prof. Dr. Gerhard Neuner providing advisory and collaborative support. Deutsch.com embodies the idea of the Common European Framework - the fundamental guiding principle of multilingualism! Language learning occurs "in the minds" of the learners within a context of multilingualism. This means that both the already learned foreign language(s) and the mother tongue can be utilized to learn an additional foreign language. Against this backdrop, both language instruction and language acquisition should be viewed. The goal is to learn efficiently and save time.