Generally, a citizen of a foreign country who wishes to enter the United States must first obtain a visa, either a nonimmigrant visa for a temporary stay, or an immigrant visa for permanent residence. Visitor visas are nonimmigrant visas for persons who want to enter the United States temporarily for business (visa category B-1), for tourism (visa category B-2), or for a combination of both purposes (B-1/B-2).| travel.state.gov
Exchange visitor (J) visas are nonimmigrant visas for individuals approved to participate in exchange visitor programs in the United States.| travel.state.gov
Generally, a citizen of a foreign country who wishes to enter the United States must first obtain a visa, either a nonimmigrant visa for a temporary stay, or an immigrant visa for permanent residence. Visitor visas are nonimmigrant visas for persons who want to enter the United States temporarily for business (visa category B-1), for tourism (visa category B-2), or for a combination of both purposes (B-1/B-2).| travel.state.gov
You must have a student visa to study in the United States. Your course of study and the type of school you plan to attend determine whether you need an F visa or an M visa.| travel.state.gov