Publishing a book is like presenting a very large business card to your audience: it introduces you, explains your area of expertise, and provides a channel for follow-up questions. You have the knowledge and the drive. With this book, you will have the information you need to add that very large business card to your marketing arsenal to position yourself to be known as the expert you are.
Writing a book clarifies your thinking, builds credibility and works every day to deliver your message with authority. You should write one.