Writing an essay

[Noego]

What should be avoided when writing an essay, what should be encouraged?

I would like to give some pointers to my students about writing. I have gathered a few ideas here and there, but would surely benefit from other people's ideas.

Thank you.

I've found the following link with what I considered valuable advice. Do you agree with what's on there?

[Tdol]

I'd add this article to the list: George Orwell, "Politics and the English Language," 1946