Since its advent in the 1960s, Systemic Functional Linguistics (SFL) has tried to “provide something to think with, a framework of related concepts that can be drawn on in many different contexts where there are problems that turn out to be, when investigated, essentially problems of language” Halliday (2009: viii). In fact, SFL has attracted the attention of scholars in a wide range of domains who have used it as a theoretical resource to analyze various types of texts, describe a significant number of languages and offer theoretical explications of how language and other semiotic systems work. The continual progress and evolution of SFL as a fully developed linguistic theory has made of it more than just an efficient analytic tool as it has gained the power to contribute to the development of many domains, ranging from those which are theory-oriented such as (Critical) Discourse Analysis, and Computational Linguistics to those which are quite practical where problems have to be solved, such as Language Learning and Teaching and Clinical Applications, to cite a few.