Regarding koma script classes, are they preferred over ordinary classes, what are the main differences and when to use each?
Also I am making a book, which is prefferred: memoir, scr book or ordinary book class? are there any diffetences regarding packages, unicode fonts, compiling....
memoir
some the AMS classes. For most basic LaTeX features and packages it doesn't if you load the standard classes or KOMA-Script classes, they are usually supported equally well, but some packages are incompatible with KOMA-Script, mainly when KOMA-Script implements similar functionalities out of the box or with KOMA-Script packages (fancyhdr
comes to mind). – moewe Sep 4 '19 at 19:57