Most writing is argumentative in some way. In business and professional writing, proposals, problem-solutions and analyses, political and ethical debate, advertisingargumentation and persuasion are essential elements of discourse in all walks of life. We write to persuade the reader that what we have to say is correct, intelligent, and rational and that our explanation or position makes sense and is appropriate. We present arguments in any kind of persuasive writing. We may argue that one position is superior to another, or we may present both sides of an argument fairly, leaving readers to come to their own conclusions.
Writing to argue does not mean winning at any cost or simply taking sides. To argue means to present issues and ideas in a fair-minded and rational wayto appeal to the reader's open mind and judgment. Your readers may be receptive to your point of view, but they expect you to present your argument in a logical, rational way that links evidence with your claims. Whether your argument supports one position or presents the issues on both sides even-handedly, you need to support what you say with evidence.