A more thorough explanation:

Recognition picketing is a type of picketing that aims to persuade an employer to recognize a union as the representative of its employees. It is also known as organizational picketing.

For example, if workers at a factory want to form a union, they may engage in recognition picketing to pressure the employer to recognize the union and negotiate a collective bargaining agreement. The picketers may carry signs and chant slogans to draw attention to their cause and encourage others to support them.

Another example is when a group of employees at a restaurant chain decide to unionize and engage in recognition picketing to demand recognition from the employer. They may picket outside the restaurant with signs that say "We want a union" or "Respect our rights."

These examples illustrate how recognition picketing is a tool used by workers to gain recognition and representation from their employer through collective action.