Full colour CMYK printing is also called the 4-colour process, because it uses four different colours of ink. By combing Cyan, Magenta, Yellow, and blacK, you can create any number of colours to bring your project to life.
But there are also instances where you will want to use CMYK to produce what’s known as Rich Black. Because sometimes, standard black isn’t quite dark enough for what you want to achieve.
Also, we are sometimes asked about including a few black and white pages within a colour booklet. It’s actually more cost effective to print these black and white pages in rich black with CMYK, than to print these pages in K separately.