There is nothing more disheartening for an author than having their upload rejected. Previewing problems, margin mistakes, fonts missing, and incorrect metadata can all result in a delayed release of days. They are frequent issues, and most can be easily sorted once one understands what is wrong. The process is explained on our website. Writers that know Amazon KDP Canada requirements in advance do not have to make any changes and keep to the release schedule. Book Publisher Canada will check your files before sending, sort out the formatting, and take care of the listing, leaving you free to concentrate on your writing. Every book remains in the hands of its author at all times.