Artist statements are living documents that will change over time as your work evolves. The statement is typically used for grant proposals, graduate school, residencies, job applications, exhibitions, your website and publicity. Remember to keep the audience in mind--- the statement you write for class might cater to a different audience than the statement on your website, but they should both leave people wanting to see more of your work.
An artist statement is essential to your art practice and career, and this guide will point you towards resources to help you craft your ideal statement!