Cyan or Process Blue		Magenta or Process Red		Yellow		Black
	We use 4 colors printing to produce color pictures. Cyan, magenta, yellow and black ink (CMYK) are also known as process colors.

	By combining these process colors together in varying proportions and determined by the size of the half tone dots, we can obtain virtually all shades of any color.
	CYAN		MAGENTA		YELLOW		BLACK
	To print this image, it is necessary to separate the original picture into 4 separate images (CMYK) that represent the relative values of each color. This stage is called color separation whereby it breaks up the original image into a series of dots of varying sizes.
	YELLOW		YELLOW AND MAGENTA		YELLOW, MAGENTA AND CYAN		YELLOW, MAGENTA, CYAN AND BLACK
	During printing, these 4 separate images are superimposed on each other and the final result is the original picture we want.