Most students want to get good marks for their essays, and pass every exam. Most students worry about not knowing enough to do this. Some are right to worry. But you may not realise that your marks depend at least as much on how well you can communicate your knowledge. This chapter looks at how you can use what you know to the very best effect. Getting great marks is a skill in its own right, and is obviously important at university. Less obviously, most of the constituent skills are highly transferable