[header] How to write a swalesian introduction [title] Introduce the topic. [step] When writing a swalesian introduction, begin by setting up the field you're writing about in a succinct summary. This first sentence (or sentences) holds a lot of weight as it sets up the focus for the article to follow. 
Your lead-in should be brief and clear enough for the reader to understand what the article will pertain to. [substeps] Define your field of study by providing necessary background on your topic.