We've all had to write essays for school. We all sat down at a screen and keyboard, or a typewriter, or with a pad of paper and... and... wondered what to do next to get this assignment over with. There were times when I didn't know what to do next. You probably found yourself in a similar situation once or twice. Luckily there's help.
Paul Roberts wrote books on linguistics and language all while teaching English to college students. If there is anyone more qualified to help you write an essay I don't know who it is. So may I present his classic entitle How to Say Nothing in 500 Words.