I'm not sure which forum this belongs on. When advertising a print size, is the actual image area given or the size of the paper ? For example a 17x22 size paper will have a 15x20 image on it in my case. Do I say 15x20 when selling or 17x22 ? I often times see photographers offering 16x20 prints but I'm never sure if that is the size of the actual image or the sheet itself. What is the most common practice ?