<p>How long should they be? Like a couple sentences or a really long essay?</p>
<p>Depends. Some schools have short answer questions, as well as a longer essay question. You really need to look carefully at the specific applications and the instructions that they provide.</p>
<p>They should be pretty concise though. Not overly long, but still not overly short. It just depends on what school you're applying to.</p>
<p>My dad gives me the general advice of:
Expand upon each thought until others can visualize it, but not as well as you visualize it.</p>
<p>Maybe it can help you? I assume that most schools give you a length... Read that bit carefully.</p>
<p>Thanks, I just started one of my essays for Exeter, I think it's going pretty well... :)</p>