A follow-up to the successful 2013 publication about OER and language teaching, this book celebrates the many ways in which language teachers and learners around the globe are embracing the concept of 'openness' in and beyond the language classroom. Divided into three sections (creating and using OERs, working in open spaces, and openness and teacher development), these short, practical case studies provide first-hand information on how openness can facilitate language teaching and learning. The editors hope it will inspire teachers to explore open tools, practices, and teacher development as part of their language teaching practice.