Legitimation Code Theory (LCT) is an emerging and rapidly expanding framework for studying and shaping knowledge practices. This volume highlights the latest advancements resulting from interdisciplinary collaborations, particularly between LCT and Systemic Functional Linguistics (SFL). Featuring contributions from key figures in both fields, including pioneers of SFL and the creator of LCT, the book introduces LCT concepts, new developments in SFL, joint studies, and strategies for curriculum and pedagogy to enhance academic discourse in classrooms.