You want to get your book published and sell them. In the uploading process you need to choose book categories to increase your sales. The right choice is very important. You want to be very specific when it comes to the subcategories available under the main categories. Here is a link to view categories available when using Ingram Spark as your publishing platform. https://bisg.org/page/BISACEdition Choose the most important or accurate category first, then the less important one second. Take care to choose the most relevant categories to sell your book.