A labor Union is a group of employees who join together to advance common interests such as wages, benefits, schedules and other employment terms and conditions. Joining together - or "acting collectively" - workers represented by unions have a powerful voice that strengthens their ability to negotiate with their employer about their concerns. Safer working condition, protection against unfair labor practices, protection against harassment and retaliation, vacation days, paid sick leave and retirement benefits are a few examples of what workers achieve through their unions, that improve the quality of jobs and workers' well-being.

Unions are membership-driven, democratic organizations governed by laws that require financial transparency and integrity, fair elections and other democratic standards, and fair representation of all workers.