The Acquisition of German: Introducing Organic Grammar brings together work on the acquisition of German from over four decades of child L1 and immigrant L2 learner studies. The book's major feature is new longitudinal data from three secondary school students who began an exchange year in Germany with no German knowledge and attained fluency. Their naturalistic acquisition process -- with a succession of stages described for the first time in L2 acquisition -- is highly similar to that of younger learners. This has important implications for German teaching and for the theory of...