Karpathy's series is many many hours long and really does take you from zero to GPT. It's excellent! You sound triggered by the title - that may not even be the official title - but it definitely deserves it. Go look it up.
The title suggests I wouldn't like it, yes. But as a video series it's not 'a textbook or at least written' is i - not really the format I'm looking for personally.
I recommend this for groundwork to get you near LLM, and cover the journey deeply. I used some of this as a helper course for Karpathy. I learned things here he didn’t cover and vice versa. https://www.cs.toronto.edu/~rgrosse/courses/csc321_2018/
I haven’t done tonnes of courses so there might be better. But this is good as a free one.
Fair enough if you prefer to slog through an entire textbook. But for anyone else.. I can't recommend this series more highly, it was just amazing, no filler, pure step after step, explained methodically to the end goal.