The document discusses the purpose and structure of argumentative essays. It provides examples of how to organize an argumentative essay with pros and cons. The essay can take one of two patterns: presenting pros first and then addressing cons and refutations, or presenting a con, then the refutation, and repeating for multiple cons. It provides a sample essay following the first pattern that argues new universities should not be established due to problems recruiting qualified staff and financial difficulties outweighing potential benefits to local communities. It also provides a sample essay using the second pattern that argues alternative healing methods like Reiki are more effective and have fewer drawbacks than medical treatment for many common ailments.