This special issue of Ikala features educational applications that advance Halliday’s views in general and SFL genre-based pedagogy in particular. It contains contributions from multiple settings (k-12 schools, universities, and non-formal education), and programs (first, foreign and second language education; language teacher preparation). Articles are written in English and Spanish, and draw implications for research and practice, linking SFL with related fields and language teaching approaches and methodologies. The issue is nicely illustrated with oeuvres from the colombian artist Miguel Arosemena. See the artist's biographical sketch here.