A labor union is a group of
employees that decide to bargain collectively (as opposed to
individually) about their terms and conditions of employment.
Unions
are democratic organization. Workers, under the National Labor
Relations Act (NLRA) have the right to vote, by law, for collective
representation by a labor union.
Workplaces that are represented
by labor unions generally have higher salaries and better benefits
packages than than their non-union counterparts (i.e. those that are
not unionized within the same occupation).