The document discusses research into how the publishing industry uses social media platforms like Facebook and Twitter to market books. It finds that personalized interactions from author's personal accounts are important for smaller publishers but can be confusing. Larger publishers have more promotional videos and photos with author voiceovers. Both platforms benefit from hashtags and videos, which generate more engagement. While organic reach is difficult on Facebook, tailored paid ads are effective at obtaining desired audiences. Videos overall are the most engaging format across platforms.