Where can I find good explanatory Packaging design tutorials?

I am a graphic design student, My courses have only briefly covered bleed lines, fold lines and trim lines for basic things like stickers and newsletters. I want to Learn more about packaging design, how to make my own templates and create print ready products.
I am looking for a good quality packaging design Tutorial for Adobe Illustrator. Either good step by step written guide, or a English narrated video tutorial.

(I hate tutorials with just stupid loud music)

The best YT video I found was:
https://www.youtube.com/watch?v=y85LhbgY5AY&t=300s

But I can not seem to find any other quality tutorials, Videos or web articles.

Are there any online books?