Doing the PhD
a PORT for Modern Languages tutorial
5 The writing process
5.4 Structuring your thesis
This is more difficult: broadly, if you have to write, say, 90,000 words, you should aim for 6 chapters of 15,000 words. The first and last will be introductory and conclusive. But even this level of prescriptiveness will be contentious, so work out what the principal stages of your argument will be, and devote a chapter (broadly) to each.