To understand why someone cannot get a job, it helps to know the three types of unemployment. List the three types of unemployment and explain what causes each type

What advice for finding a job would be appropriate for someone in each type of unemployment?

Frictional unemployment is the unemployment that arises from the process of matching workers with jobs. These workers are qualified; they just need to search for a job. The advice for finding a job would be to keep searching, because there are jobs available for which they are qualified.
Structural unemployment is unemployment arising from a persistent mismatch between the skills and characteristics of workers and the requirements of the jobs. The advice for finding a job would be to retrain so that they can match up with the requirements of current jobs.
Cyclical unemployment is unemployment caused by a business cycle recession. The advice for finding a job would be to hang in there and continue searching, but realize that there are less jobs available than the number of applicants. The cyclically unemployed person could perhaps get a temporary job until the economy picks up, or perhaps consider continuing his or her education while the business cycle slowdown lasts.