If you wish to visit the United States temporarily or be granted entry for a very specific period of time, you will need a non-immigrant visa. Some of the most common types of non-immigrant visas are a student visa (should you be looking to further your education and skills), business investor visas (if you are planning on coming to the U.S. to invest in a business), or a travel visa (if you wish to do some traveling in the U.S.).