Challenging Boundaries in Linguistics: Systemic Functional Perspectives: Stella Neumann, Rebekah Wegener, Jennifer Fest, Paula Niemietz and Nicole Hützen (eds) Frankfurt am Main & New York: Peter Lang, 2016, 493 pp.

As the book under review states, 'We set boundaries, we live with boundaries, we push boundaries and we challenge and break boundaries' (p. 9). Margaret A. Berg & Jingzi Huang's contribution is on the implications of an SFL-informed teacher development project for the instructional training of teachers and their performance, with a focus on academic language development beyond vocabulary. Despite the great potential of cross-boundary research shown by this volume, it should be noted that those who work in SFL still have a long way to go in this line of research. [Extracted from the article]