I have footnotes in my manuscript. Each footnote is indicated by a number in superscript. Should the number directly (without a space) follow the word? Or should a space be placed between the word and the footnote number in superscript?
This is already in the comments, but to answer this, I regularly and consistently use thin/hair spaces before footnote numbers, to separate these a bit. Without these thin/hair spaces added, footnotes will generally be too close to the preceding word, sometimes even sticking to it.
Obviously, a full space would be too much, and should always be avoided.
A preview of something I'm just working on ...