This is an example of color separation in CMYK (Cyan, Magenta, Yellow, and Black). Together these colors when printed on top of each other (layered) can create a beautifully rich color image.
![](http://3.bp.blogspot.com/_3GVCQ0Tlikk/ScLN8-3Dn-I/AAAAAAAAAU4/07cfV0_gA1c/s400/cmyk+750.jpg)
Top Left: Cyan Top Right: Magenta
Bottom Left: Yellow Bottom Right: Black
Original image below
![](http://4.bp.blogspot.com/_3GVCQ0Tlikk/ScMexv24NdI/AAAAAAAAAYg/1fO92Iyiq5s/s200/francisco+contreras+topps+750.jpg)