A while ago I got tired of giving all my project students the same advice on report writing, and decided to collect it all in one place so they could read it at their leisure. This has resulted in the documents hosted here.
I am releasing them in both PDF and .docx versions; the latter allows me to distribute a set of document styles that might be useful.
Important note:
This document is only intended for students who are writing project reports for me to read and mark.
I know from students who have followed my advice in previous years that some other academics here do not agree with me on some of the advice in this document.
(The main differences in opinion seem to concern the formality of the writing style required, and on the use of the first person in project reports. I would strongly advise you to get advice from your first and second supervisor and follow that wherever possible; after all, these are the people who will be marking your report.)
(This isn't as arbitrary as it may seem - it's a very useful skill to be able to find out what your boss wants from a report, and to provide that, even if you think it's not the best way to write a document.)