As a Public Relations Officer, you will need to master following:

• corporate social responsibility
• establish relationship with the media

More generally, a public relations officer is also versed in:

• advise on public image
• advise on public relations
• analyse external factors of companies
• communication principles
• conduct public presentations
• develop communications strategies
• develop public relations strategies
• diplomatic principles
• draft press releases
• forming of public opinion
• give interviews to media
• integrate strategic foundation in daily performance
• market research
• organise press conferences
• perform public relations
• prepare presentation material
• protect client interests
• rhetoric
• strategic planning
• use different communication channels

It also helps to know the following:

• company policies
• cost management
• follow the news
• identify customer's needs
• work closely with news teams
• advise on communication strategies
• analyse internal factors of companies
• apply diplomatic principles
• build business relationships
• build community relations
• build international relations
• carry out forum moderation
• compile content
• content marketing strategy
• coordinate advertising campaigns
• copyright legislation
• develop creative ideas
• develop professional network
• develop promotional tools
• give live presentation
• government representation
• implement marketing strategies
• liaise with politicians
• liaise with quality assurance
• perform business analysis
• plan marketing campaigns
• psychological concepts
• social media management
• speak different languages
• types of media
• use analytics for commercial purposes