Hello everyone. I have a couple dozen history books (for research purposes). Many subjects are covered in them, and I would like to use a software that could, say, use a tag like WW2 and when I click it, see a pre-made list of books and pages that cover that subject.
I thought about using a wiki, but I think that's too complex for what I want, though I've been looking at Tiddlywiki for example.
How do you organise all your data for your Ph. D. ?