The U.S. immigration system is an enormous bureaucracy, so it's vital that you understand it before attempting to apply for a green card. Making a mistake can lead to delays and hassles or even ruin your chances for success.

How to Get a Green Card provides everything you need to know about qualifying for permanent U.S. residence if you don't have an employer sponsoring you.

Find out how to work with U.S. officials and prepare and present the right documents at the right time to get a green card through:

- parents, siblings, or adult children

- a U.S. spouse or fiancé

- green card lotteries (diversity visa)

- political asylum or refugee status

- a U visa for crime victims, or

- another category you might qualify for.

The 16th edition covers the latest income requirements for family-based green card applicants, additions to the list of countries whose citizens may obtain Temporary Protected Status, and more.