Almost every picture taken today is recorded on a small negative or sensor and then enlarged to the desired print size. There are an almost dizzying array of print size options available but there is a small core of standard, or most common, sizes that will fit almost any need. From deciding how big you can print your picture, to what will be cropped out, to how big you should get a print to hang on your wall, this list will take you through all you need to know about photo print sizes.