These People will probably end up critiquing you're
essay so try and keep it a little interesting. Note the vacant expression
on the farthest man's face. If you don't want a bunch of lazy people commenting
or sleeping on your essay you have to make the intro and the last paragraph
really good. You might want to add a lot of pictures and random diagrams
to get your point across. You don't even really need to make the related
to the essay itself as long as they look professional. Scroll down to see
some random diagrams and pictures. These pictures make the reader feel
important as if they can understand what the essay is about. So keep these
things in mind and your essay will not suck completley.
Fig 3.5 I am sure this means something to someone. 
3.6 I'm not so sure about this one