As an agent, Eric Lincoln Miller of 3ibooks follows a marketing plan template that includes print, events, and online promotion. To help his authors, he can reach out to contacts to assist in building a platform, and he relies on a good collaboration with his authors. He can't do the promotions himself, but he can provide guidance and ideas on how authors can create awareness and elevate their books. He encourages authors to work on their platforms before submitting to agents - a solid platform can greatly help an agent get a publishing deal for your book. For example, having an endorsement from a celebrity or respected individual in a field can lend a lot of credibility to a book.