Vision is our highest bandwidth sense and the primary source of information about the world around us.
Material is easier to understand and more enjoyable when images accompany verbal descriptions.
If you already have a voice transceiver and a computer, you can send and receive pictures at zero cost or very close to it. If you're impatient, skip to the last question for details. There are basically two methods used to send pictures over ham radio. A single transmission is wider than the entire 2 meter ham band. Early pictures were low resolution black and white.