This month’s Industry Influencer is John Kremer, the author of 1001 Ways to Market Your Books, editor of the Book Marketing Tip of the Week e-zine, and webmaster of a dozen websites—the most important of which is www.bookmarket.com, a leading resource in book marketing and book promotion. Read John’s advice to new writers trying to reach a broader audience, which social media platform he thinks is most valuable for writers, and how introverted writers can make the most of self-promotion.