Writing a non-fiction book is a huge undertaking whether you are writing a memoir, a self-help or expository text. Unlike fiction, you do not get to make things up. What you write has to be factually accurate. That is what makes it nonfiction. Unless, of course, you are writing a narrative memoir. While you are aiming for factual accuracy, you can only write your own truth. Depending on what genre you are focusing, you have to determine the non-fiction voice in which you will write your book. The most important element in finding your non-fiction voice is who you …