Strategies for Arguing

Analogies can be used with certain intent to capture an audience's attention and relate ideas so they are understandable, one tactic in an arguing a point. President Obama used an analogy when he was inaugurated into office for his second term, "our destiny is stitched together like those 50 stars." The effectiveness of this analogy then comes from his interpretation of what he meant, that America became great because it was built together, not by a handful of individuals.
Another tactic to argue a point, is to use classification, sorting aspects of a topic into different categories to show the differences or similarities among them. An example of classification, is sorting animals depending on their relatedness to other species. In this case that is the class of the species, there are many different subcategories to this as well. Now would be a key time to define the word class and explain the Taxonomic Rank. When writing, if a term is used that is not known by the reader, the author should then supply the definition.
Another effective tactic is to use satire, like The Onion, to convey and discuss points. The humor is appropriate in that context, because the news source is always satirical. If the New York Times of Washington Post had an article on the rush of immigrants to Europe and used satire to argue for or against it, people would be up in arms because they are a factual news source.