Media relations refer to the relationship between a company and journalists, where journalists need material from PR sources and PR practitioners provide updated information to keep the public informed. PR practitioners are familiar with print media like newspapers, magazines, books and posters; broadcasting media like TV and radio; and new media like websites and social media. They provide information to journalists without editors filtering it. The functions of media include informing the public, facilitating economic and political systems, and providing entertainment. A journalist's duties are to collect, interpret and verify news while respecting culture. PR best practices include leading with the most important facts, telling the truth, pitching interviews in advance of calling journalists, and delivering materials before media deadlines.