Good resources for learning basics of home foundation systems etc

[Slaiman Atayee]

Hi everyone,

I'm wondering if anyone has any good resources that simply explain all the foundational elements of a house (e.g., foundation, systems, electricals/mechanicals, crawl space, etc) and how they work, what shapes and sizes they come in, and anything else that's useful. I'm looking to brush up on these basics as I continue to purchase more rehab properties so I can have a general concept of what I can and can't do when visualizing a rehab. I'll take anything including YouTube videos, blogs, and book recommendations. Thanks!