How to dye hairA process essay is a type of essay that does exactly as its name “process essay” implies. A process essay will be an essay that covers the process of how to do something. Basically, it will be a “how to” type of essay and will almost read like a set of instructions/directions. As such, of the selections above, a topic on how to dye hair would be a topic for process essay as it would most likely cover the process of dyeing hair.