[header] How to write an interview essay [title] Determine the purpose of your essay. [step] This will have an impact on whom you interview, how you will conduct the interview, and how you will write the subsequent essay. [substeps] If your essay is to be a factual piece, you'll want to interview someone who has expertise in the subject matter you'll be addressing. 
If your paper is about a science topic, you'll want to interview a scientist in that field. If your paper is about a period of history, you'll want to interview either a historian or someone who's lived through that period of history.