Abstract
This chapter discusses corpus applications to language teaching and learning, focusing specifically on the use of corpora and corpus linguistics research for informing coursebook and assessment development. A number of studies undertaken by the authors are discussed with a view to highlighting both the affordances of corpus linguistics for supporting such indirect applications to language education, as well as the barriers of using corpus linguistics research to inform stakeholder practices. Focusing on the use of corpora by materials writers, the use of learner corpus research and spoken corpus research for assessment refinement and design, and the use of corpus research for materials design, this chapter reflects on engagement with stakeholders in this domain over the last fifteen years. Drawing together the lessons learned from these studies, this chapter offers a critical reflection on the relative impact achieved in each study, while also proposing guidelines for those interested in working with stakeholders to co-design research and produce relevant and appliable research.