Indeed, sustainability and sustainable development are the catchwords of our time. As a starting point for a scholarly conversation on Education for Sustainable Development (ESD), the presentation here is approaching ESD from the perspective of teacher education. When we refer to teacher education, we are mainly moving within a Swedish context and using, as a case study, for the sake of exemplification, the vocational teachers training program. Initially, the discourse on sustainability is set in the context of current societal trends, experiences of social acceleration and changes in the tempo of modern social life. After that, a review is made of how the Curriculum for upper secondary school as well as the Education Plan for teacher education address SDE and whether it provides sufficient and unambiguous guidelines for teachers and school  leaders to work for sustainable development in a sustainable way. The chapter concludes with some reflections about the transformative potential of ESD.