First released in 2005, Ken Hyland's Metadiscourse has become a canonical account of how language is used in written communication. 'Metadiscourse' is defined as the ways that writers reflect on their texts to refer to themselves, their readers or the text itself. It is a key resource in language as it allows the writer to engage with readers in familiar and expected ways and as such it is an important tool for students of academic writing in both the L1 and L2 context.