According to the document, over 1 billion people are on Facebook worldwide and over 10 million people click like on Facebook pages every day. The document discusses how brands can engage Facebook users through pages, apps, sharing options, and social ads. It provides strategies for brands to engage audiences on Facebook including asking questions, encouraging user generated content, driving people to like pages, and more. The document also discusses how brands can measure success on Facebook through metrics like reach, engagement, and driving traffic and sales. It provides case studies of how IKEA and breast cancer awareness campaigns used Facebook features successfully.