Think of something you feel very strongly about. If it is an issue about which there are differing opinions, and you have formed your opinion over time, you have a good topic for a persuasive essay. Writing that essay, however, will take a little more skill. But you can really write a good one, if you follow the steps outlined here.
Sometimes, you will not have the luxury of selecting your own topic. Instructors have their favorite topics and may give you some persuasive essay prompts from which to choose. Don’t panic. Do a little bit of research and read some sample persuasive essays on the topics. You will then be able to choose a topic that will be interesting to you, and you will also have and idea of which points you intent to include in your argument.