Not all topics are appropriate to use for an argument or persuasion essay. Select a topic that has two different but viable sides that require a more in-depth answer than a simple yes or no. If most or all of your audience is already going to agree with you, it isn't a good topic. Instead, choose one where you can use information from both sides of the topic to create your argument. The more controversial the topic, the better.
Once you have decided which side of the topic you are on, construct your essay. One of the most important elements for your essay is information to back up your side of the argument. Include quotes, statistics and studies by experts in the field associated with the topic. Solid facts are important to persuade your readers to understand your side of the argument and ultimately agree with you. While it can be important to include your opinion, the facts are more likely to sway someone over toward your views.
While it may seem counterintuitive to include the opposing viewpoint in your essay, it is still important. When you show your readers the other viewpoint, you acknowledge that some people do feel differently than you do regarding the topic. Recognizing the other side lets your readers know that you have carefully researched the topic and given your position serious thought. Use the information from the other viewpoints to validate your own argument about the topic. Let your audience know why the information that may be presented by the other side of the argument is not valid. The purpose of these types of essays is to show why your way is better.
If there is a logical progression from one aspect of your topic to another, follow that. If not, place your weaker arguments first and progress toward the strongest ones. Transition from one aspect to the next smoothly to avoid creating a choppy essay. A smooth flow will encourage your readers to keep reading. If you can provide an interesting fact to start your essay, you can capture your audience's attention early.