It's geared towards people who can already write reasonably well, but who would like to give more elegance and polish to their written expression. He takes readers through the essential steps of writing, re-writing, then editing, editing, and editing yet again to produce the best results. That's what lots of students ask - both undergraduates and postgraduates alike. They would like to undertake a longer piece of work - maybe even some original research. But it's quite common for them not to have seen such a work in the linguistic flesh.
Help is at hand.
We have two sources of examples. The first is a distinction-winning dissertation by an Open University student. It illustrates the quality of argument and the level of analytic detail required in work at this level. The other source is a web link to the Massachusetts Institute of Technology, where they have decided to make their stock of digitised research papers available. You can only view these one page at a time, but there's a good search engine and an amazingly wide range of subjects from which to choose.