These may be blue or white collar workers. Unskilled Labor - These are workers who have received no special training and have few specific skills. As our society has grown into an increasingly technological one, the members of this group have developed more and more skills. A mechanic, for example, used to be considered unskilled labor. Today that is no longer the case.
Mechanics require a great deal of skill and training to work with today's modern engines.
Examples of unskilled laborers are construction workers, sanitation and custodial workers, painters, factory assembly line workers, etc. These are blue collar workers. Professionals - Arguably the elite of the labor grades, these are those workers who need an advanced degree to do their jobs. The three primary groups of professional are doctors, lawyers and teachers. These are white collar workers.