Dotted arrow means dependencies. [1]
How Linux Works, 2nd edition. https://www.yes24.com/Product/Goods/22404368
FHS 3.0 https://refspecs.linuxfoundation.org/FHS_3.0/fhs-3.0.html
The Dinosaur Book https://www.amazon.com/Operating-System-Concepts-Binder-Version/dp/1118129385
OSTEP https://pages.cs.wisc.edu/~remzi/OSTEP/
Understanding the Linux Kernel, 3rd edition. https://www.amazon.com/Understanding-Linux-Kernel-Third-Daniel/dp/0596005652
[1]UML Distilled, 3rd edition. https://www.amazon.com/UML-Distilled-Standard-Modeling-Language/dp/0321193687