Is there a manual of how to write an Introduction? I was reading a Introduction in a Master's thesis, and this particular example appears to be overly lengthy.



Is there a consensus on how many points can be adequately addressed in an introduction? or a maximum number of pages? or is this question fully subjective?

The goal here is to learn more about best approaches to writing an introduction, regardless of content.
This example is from a Master's thesis, so the total number of pages is expected to be larger than, say, in a paper. Whether or not the length is appropriate depends on the quality of the text but, in general, I'd say it is fairly reasonable to have a 10-page-long thesis introduction (although each field has its own guidelines).