In addition to Mastering Bitcoin which is great and was mentioned above by SatoPrincess, I recommend
learn me a bitcoin website to you.
This is a fine website too I'll definitely have a quick glance and probably add to bookmark most times I use bitcoin wiki for some research sometimes Wikipedia other times I rely on the forum for further information. However this one is also worth adding to that portfolio.
What are some good beginner resources, websites, or books you recommend? Also, what’s the best way to start understanding Bitcoin’s real use cases beyond just investing?
As for this my best advice is you should consider surfing the forum more often you could be surprised the amount of valuable information you may find especially in older discussions.