The O1 Exceptional Ability Visa is a type of U.S. non-immigrant visa for foreigners who have demonstrated exceptional talent in the arts, sciences, education, business, or athletics. Applicants need to demonstrate an international reputation in their field, demonstrating their outstanding talent through awards, publications, patents, media coverage or expert review. The application for O1 visa needs to provide detailed supporting materials and supporting documents, such as personal resume, professional evaluation, work contract and recommendation letter, etc.