Introduction There are different ways to effectively write non-fiction books. Some people see where a book would fill a need, do a lot of research, and write a book to fill that need. You can usually tell this type of author because their books cover an amazingly wide range of topics. I have a lot of admiration for people who choose to do this. The work they do to discover, assemble, and present the information can be invaluable. It's just not my way. I prefer to write books where I have a deep knowledge of the subject through personal experience and study. That's not a better approach, it's just my approach. It's also one of the reasons I'm so pleased with my book, Modern Sex