A student visa is an official document issued to people whose primary reason for entry to another country is the pursuit of education. It is a non-immigrant visa and a must have to study abroad. These are in most cases multiple entry visas and remain valid till the completion of the course enrolled in. Most countries offer more than one type of student visa based on the circumstances. For example, Australia offers 7 types of student visas while the USA offers 3. However, all of these visas can be classified into two broad categories.