Lobbying is the process of attempting to influence the actions, policies, or decisions of officials in their daily life. It’s like a fundamental tool for influencing public opinion.
To be more concise: Lobby is a combination between public affairs and PR&Communication.
A lobbyist is an activist who persuade members of the government to adopt legislation on behalf of individuals and organizations.
Advocacy can be defined as an action that speaks in favor of, recommends, argues for a cause, supports or defends, or pleads on behalf of others.
Lobbying is only one kind of advocacy. Not all advocacy is lobbying but all lobbying is advocacy.
Public Relations (PR) help a business build a positive reputation with the audience through different unpaid or earned channels, including traditional media, social media etc.
Public affairs combines government relations, media communications, issue management, corporate and social responsibility, information dissemination and strategic communications.
Although PR and public affairs have similar characteristics like building relationships with the public, the first one is more political in nature while the second one tends to have a more commercial focus.
A public Relations specialist is engaged in activities like designing marketing campaigns, branding, public relations crisis, research etc. A specialist in Public Affairs provides information to stakeholders or is engaged in activities including: consulting, advising, lobbying etc.