TN Treaty NAFTA
If you are a national of either Canada or Mexico, this visa is available to you. It is a temporary work visa for people who have a Bachelors Degree or the equivalent in work experience. There are numerous types of fields that are eligible for this type of visa. Some examples range from graphic artists, business, medical, teaching and computer fields.
While this visa is valid for only one year, it can easily be renewed. In Canada, this visa does not need prior Immigration and Naturalization approval, and therefore, is quick to obtain.