Visa categorized as immigrants or non-immigrants. Immigrant visas are usually referred to as a residence visa. It is for people who want to take up permanent residence in another country. There are strict requirements for this type of visa. This process is usually long and expensive. If you want to get more information regarding the Visa then you can Pop up the link.
There are a large number of non-immigrant visas. Basically there are three types are grouped according to purpose: visit, study, work. Those who plan to visit other countries will need to get either a tourist visa or business visa depending on what they plan to accomplish.
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Student gets the visa from according to the previous education. There are many training programs and exchange programs that fall into this category. Some of these are au pairs, camp counselors, professors, research scholars, and foreign doctors.
Anyone who is planning to work temporarily in other countries needs to obtain a work visa. Nurses, trainees in various fields and the missionaries are examples of people who will need a work visa. Others who fall into this category are those with exceptional ability in a specific field. It could be in the arts or sports, business or education. Performing artists and entertainers whose work is unique cultures will require this type of visa.