A Craft Union is a union of skilled tradespeople sharing comparable trade skills. These unions are often organized locally and may be affiliated with larger organizations such as the AFL-CIO. An industry-wide union, such as the United Auto Workers or United Steelworkers, represents the opposite structure.
A horizontal union is a type of labor union that represents all workers in a particular craft or skill across an entire industry, region, or country, irrespective of the specific workplace.
A vertical union is a labor union that includes workers from multiple crafts and unskilled occupations within the same industry, rather than grouping workers by specific trade or skill.
