Book printing usually consists of one or more color combinations. The usual is one color, 4 colors and pantone color.

One color printing generally refers to the printing of one color, such as an A4 leaflet no matter what color paper is used, when printing one color black then black, one color blue then blue, no other colors. There is no secondary overprinting. Even if there is a small red dot on the black printing, it is also two colors. Printing with only one color is called one color printing.

General full color printing is also called 4 color printing CMYK mean cyan, magenta, yellow and black, which can usually reproduce other tens of thousands of colors from these four colors in book printing.

Pantone color-refers to that when printing, it does not synthesize this color by CMYK colors, but uses a specific ink to print the color. Pantone color ink refers to a pre-mixed specific color ink used to replace or supplement process color inks, such as bright orange, green, fluorescent colors, metallic gold silver ink, etc., or can be hot stamping, embossed, etc. It can also be used as a local varnish and so on. It is not based on the CMYK color mixing. Each Pantone color requires a special printing plate when it is printed. The Pantone color means an accurate color.