Social media will not drive sales independently, but it can supplement your Facebook ads or other channels. Proper planning will raise brand awareness to the point where your product is considered when people purchase. For book sales, having relevant influencers talk about the book or podcasters review and suggest a book to a larger audience may be more effective than any display ad from https://bulkfollows.com. Finding influencers in your niche may be the best solution. Search relevant hashtags on social media for prominent accounts to advertise your book.