Many of these immigration laws are interpreted in U.S. Immigration Made Easy, by Attorney Ilona Bray (Nolo), including how to obtain many different visas, including the K-1 visa for fiancés, the B-1 and B-2 business and tourist visas, the H-1B, H-2B, and H-3 visas for temporary specialty or agricultural workers, the L-1 visa for intracompany transferees, the E-1 and E-2 visas for treaty traders and investors, the F-1 and M-1 visas for students, the J-1 visa for exchange visitors, or the O, P, or R visas for temporary workers, and how to get a green card through a family member, through the Diversity Visa Lottery, or as an asylee or refugee.

The Risks of Lying to the U.S. Government

One of the worst things you can do to your chances of getting a visa or green card is to lie, either on paper or during an interview with a U.S. border or other immigration inspector. Lies can have both immediate consequences, such as not being able to enter the U.S., and long-term consequences, such as not being able to get a green card -- ever.

Who Can Be Kept Out

No matter what eligibility category you fall into -- whether you've married a U.S. citizen, received a job offer, or been accepted to a school -- the U.S. has the right to say no. And not just because there's something wrong with your application. The immigration law contains a list of things, like crimes and certain diseases, that makes someone "inadmissible." For more information, see When the U.S. Can Keep You Out.