The science behind color creation and printiques is an important one if you want to make educated decisions regarding the production of the best images for all your projects.
Understanding the different between the different color profiles ensures that you select the right printing process to be used so that the end product is not affected by a wrong choice or decision.
Choosing a metallic finish or something with fluorescent colors in it, the process used is known as spot printing which is actually best for projects that do not utilize full color imagery and is mostly in monotones.