Citizens of most foreign countries require a visa to enter the United States, and there are two main types of US visas – Immigrant Visas and Non-Immigrant Visas. The process of obtaining a US visa can seem daunting and confusing, but it is important to understand that a US visa is essentially a permit for foreign nationals to enter the country for a specific purpose. US Visas are issued at U.S. consulates and embassies abroad, and once obtained, they allow the individual to travel to a United States port of entry and request permission to enter the country. It’s worth noting that Immigrant Visas are for individuals who intend to live permanently in the United States, while Non-Immigrant visas are for individuals with permanent residence outside of the United States but who wish to be in the U.S. on a temporary basis for business, education, or leisure purposes.