You wrote a book (or are planning to). Now, how do you sell it? Or, better question, how do you use it to make your author emPact? (Spoiler alert: Writing a book is half the battle. Marketing it is another story. Literally.) Do you want to write a book that is marketable (and people will buy)? Do you want to sell more books, reach more people and inspire in the process? Do you want to leverage a book...