There are two basics types of coverage: Term and Permanent.
Permanent life insurance provides lifetime protection for as long as you live as long as you pay the premiums.
Term life insurance is temporary life insurance coverage that lasts for the selected "term" (duration) of your policy which is usually from 10 years up to 30 years.
People who need life insurance for a period of 30 years or less usually choose term insurance because it costs a lot less than permanent insurance.
Learn more about Term Life Insurance and Permanent Life Insurance.