In immigration law, a USA Visitor Visa is a tourist visa to US. It is also known as B2 Visa. Visitor visa is a non-immigrant visa issued to people entering US temporarily for pleasure, tourism, or medical treatment. Any foreign citizen including parents who wants to visit USA for tourism, visiting children, family, friends, relatives, attending special events, family functions, ceremonies, or for medical treatment may qualify and can apply for Visitor Visa. Preparing an application for a B-2 Visitor Visa requires certain knowledge and understanding about the process and preparation for the application and interview to follow.