Considering and emulating the use of extended analogies in non-fiction writing

An extended analogy is a comparison between one thing and another that is developed throughout the piece of work. A non-fiction piece of writing might use extended analogies to help communicate an idea to the audience. To craft an extended analogy, we might begin by thinking about what idea we want to communicate. Once we have our idea, we might think about what comparison we can use to communicate this idea. Once we have our comparison, we might develop it into an extended analogy through synonyms and semantic fields.