A very good book if you're just about to go to university. Since I'm out the other side of undergrad and into postgrad work, it was less helpful for me -- particularly because I've been taught by one of the authors, so I've encountered most of the advice before. The section on how to structure an essay can definitely be a bit too rigid a framework, even if Martin Coyle himself is marking it, but it does make a good start for planning an essay.
This is actually my sister's copy, and she's just starting medical sciences, so it's not just relevant/useful for English Lit: this was recommended reading on her course, too.