His research interests include Discourse Analysis and Systemic Functional Linguistics. He has taught extensively in these areas at MA and PhD levels and has produced many papers with his students and alone.Yaser Hadidi is a PhD candidate in the University of Tehran and an instructor of English in Tabriz University. He is interested in bringing out the contributions of Systemic Functional Linguistics to Discourse Analysis and Stylistics and its potentials for Multimodal Discourse Analysis.