I was reading a thesis report of a friend and I noticed that he didn't indent the first line of the first paragraph in each chapter. I don't remember noticing it anywhere before until I saw it there and I have some OCD issues with reformatting the documents/reports and make them look awesome.
So I would like to know, if I'm going to write a new document/report that is divided in chapters and paragraphs, what kind of indentation should I prefer? Should I indent all the first lines of the paragraphs regarding if it's the first in a chapter or not and why one method is better than the other?