I have been basically "hacking" with LaTeX so far, trying out things that seem to visually give the result I want, and using google to find solutions.
However, I have heard people say that certain LaTeX usage is bad (e.g. using : instead of \colon in certain places), and that certain packages are canonical (e.g. amsmath).
Other questions have asked about an ad hoc list of best practices, or about the LaTeX language specification, but my question is: Are there LaTeX usage standards that are basically accepted by the mainstream researcher community (and in particular, journals and conferences) as "the correct" way to use LaTeX, and that are organized into a single resource? I don't expect literally all usage standards to be in there, since different fields might have different expectations or customs. One candidate I found is the Math into Latex book by Gratzer.