If you want to visit the US for a short period of time, you will first need to obtain a non-immigrant US visa. It is very important for you to keep in mind that there are different types of visas available in this regard. Therefore, you must first determine which type of visa you really need to apply for. Some of the different types of visas available in this category include exchange visitor visas, business visitor visas, student visas, and others. As compared to the efforts you have to put in to obtain an immigrant visa, the process for this type of visa is less complicated and takes lesser time.