Process essays are classified into two types: directed (how to accomplish something) and informative (how something works). A directive essay gives instructions on how to attain a certain outcome (how to cook perfect grits). An informative essay informs the reader about something (how a rocket engine works). Both types of essays include explanations why something is the way it is. These reasons may be explicit, such as "because I said so" or they may be implicit such as "because that's how it works". Either way, they help readers understand what is going on under the surface while they are reading about an issue that may not be clear at first glance. A directional process essay is one that tells you exactly what to do to solve a problem or achieve a goal. It can be as simple as "read these steps until you find the one that applies to your situation", or as complex as a plan for building a rocket engine. The important thing is that the writer includes all the information needed to correctly perform the action. Informative process essays explain how things work, without telling you exactly what to do. They may do this by describing different options available for achieving a result, explaining which ones are best in your situation, or even by showing how a previous event led to another one (e.g., "If you want your paper written on time, don't wait until the last minute").