The document discusses the growth of social commerce and the six social principles that can increase sales: social proof, authority, liking, reciprocity, scarcity, and consistency. Social commerce is projected to grow significantly in size over the next few years. The principles leverage relationships and engagement to improve the shopping experience across prospects, customers, influencers and media. Marketers can apply these principles at different stages of the social funnel to attract more prospects and convert them into buyers and advocates.