So after reading many of the comments here; What is a good tutorial / training, to learn about LLMs from scratch ? I guess that’s the main problem, even more

So after reading many of the comments here; What is a good tutorial / training, to learn about LLMs from scratch ? I guess that’s the main problem, even more so for non-developers and -tech people. The learning curve is too steep, and people don’t know where to start.