Uhm i only skimmed one programming book on C++ ages ago(it was terrible for a begginer), besides Nim in Action, and i haven't gotten Mastering Nim yet, i will order it in a week or so, so i can't say exactly. Nim in Action was quite decent to me, not all that much to read with a lot of examples. The book assumes that you know some basics of programming so it's not exactly for a true beginner, but you obviously are not one of those people.
@Isofruit Hmm, that could go into that video as well, though i will have to split the video, i tend to make them too large which YouTube doesn't like either(the algorithm).