Facebook identifies and categorises people on its platform on the basis of topics in which they showed interest by engaging with posts, pages and groups on such topics. When a company or brand debuts on Facebook, it asks them to choose a category and based on the category chosen by the brands, it suggests the brands’ pages to people following that category, to follow those pages. With Facebook’s advertising methodologies, a brand can make Facebook showcase their brand to a wider range of audience and that too more vigorously and also drive them to their website.