The Shot Heard Round The World:
"Employees shall have the right to self-organization, to form, join, or assist labor organizations, to bargain collectively through representatives of their own choosing, and to engage in other concerted activities for the purpose of collective bargaining or other mutual aid or protection..." Section 7 (U.S. Code Title 29, Chapter 7 § 157)
What does that mean?
*It means that employees have the legal right to help organize, to join and to support a union of their own choosing. This includes such activities as signing a union card, getting others to sign cards, attending union meetings, wearing union buttons, passing out union literature to other employees.