The first few Units cover all the basics: chemistry of life and energy, molecular biology, cell biology, and genetics. From there you can branch out into anything.
Maybe an educational text for the laymen has summarised this recently but I'm not aware of one. Most Biology from your school days have been rewritten.
I will have to re-read Molecular Biology of the Cell, 7th Edition, 2022. I read the 3th edition and it has changed dramatically since.
You can download it on Anna's Archive or order it at the usual suspects https://www.amazon.com/s?k=Molecular+Biology+of+the+Cell%2C+...