An expository essay describes and explains how something or work is done. It requires or calls for a clear understanding of what things are. To write this essay effectively, you should equipped yourself with knowledge of ‘facts’ which can be required and the processes involved in any topic given i.e stages should be clearly stated. Example
TOPIC: Describe carefully the preparation of your favorite food. Your essay should be suitable for publication in your school magazine.
GUIDELINE (EXPOSITORY ESSAY)
(a) Have the facts at your finger tips.
(b) Understand how the facts fit together and are made.
(c) Equipped yourself with a sound knowledge of any human field.
(d) Be exact in your explanation how things are done or work.