What Is One Or Two Color Printing?

Learning Center
One color printing frequently uses the standard black ink on white paper, but you can choose a variety of ink colors to create a different and eye catching look.  Another option would be to vary ink color and paper color to create an even more dramatic look.

Two color printing commonly uses black and one other color or any 2 Pantone colors.  There is also the option of using different inks, and paper color to give your document higher impact on the reader. For 2 Color printing the artwork should be provided to us in a format so that we can do a color-separation easily.