How To Write A Book Of Your Life Story . You have to be a famous celebrity. But mostly think about who you are today and how you got that way, says roberta temes, phd, psychologist and author of how to write a memoir in 30 days. Your Autobiography Writing a Purpose Statement — Pictures and Stories from picturesandstories.com It involves just ten of these. The goal is to start. Readers see your emotion on the page.