Do you know your book will sell, or are you only hoping it does? Successful authors know what most other authors don't. They know that selling books on Amazon is a game, and it runs on code. Successful authors have worked out how to crack that code and write books which are consistent bestsellers. Those books make them an annual 6-figure income in many cases. Most of the rest of Amazon authors run only on "hope marketing." They publish a single book...