The back cover offers a synopsis and aspects with regards to the creator that relate towards the book. Book cover by kostis Pavlov for celenawittman. The back cover should also leave space for your International Regular Book Quantity (or ISBN code) and the barcode that goes with it. My own https://amazonselfpublishing.home.blog/2024/11/10/maple-publication-bringing-authors-visions-to-life/