Have you heard the expression, "The pen is mightier than the sword?" Whoever said it was probably thinking about persuasive writing. This type of writing tries to change readers' opinions or actions.
Persuasive writers often begin by taking a position on an issue. Readers are invited to agree with that position and are urged to take action. Writers must present convincing reasons why readers should adopt their opinion. Sometimes reasons are based on logic, but writers can also appeal to readers' emotions.
When you write persuasively, you will gather evidence, organize your argument, and try to get readers to agree with you.