The document provides definitions and guidelines for writing an argumentative essay. It explains that an argumentative essay considers a controversial topic from opposing viewpoints and gives advantages and disadvantages of each side. It then outlines the typical structure of an argumentative essay, including an introductory paragraph, main body paragraphs presenting points for and against each side, and a concluding paragraph that provides an opinion or balanced consideration. It also provides examples of linking words and phrases that can be used to introduce and connect points in the essay.