A postcard or post card is usually, but not always, a rectangular piece of thick paper or thin cardboard intended for writing and mailing without an envelope.

Posters are usually large sheets of paper with writing or pictures on them that is displayed as a notice, advertisement, or for decoration.

Digital printing refers to methods of printing from a digital image directly to a variety of paper, cardstock and other materials.

Wide format printers (large format printers) are generally accepted to be any printer that supports a maximum print roll width of between 18″ and 100″.