Learning #LaTeX properly with A Guide to LaTeX and electronic publishing, 4/e by Kopka and Daly.
@redstarfish hmm is that guide actively maintained? personally, i'd recommend this: https://tobi.oetiker.ch/lshort/lshort.pdf
@redstarfish hmm is that guide actively maintained? personally, i'd recommend this: https://tobi.oetiker.ch/lshort/lshort.pdf