Re: Is "Mastering Bitcoin" from Andreas Antonopoulos suited for normal people?
The book is on Github, so why not skim it a little and see if getting a physical copy makes sense for you? 
I was also advising people to read it on Github but then one member said sometimes it's better to have physical one also to help the author that way appreciating his efforts to provide us with that valuable resource about bitcoin.There are lot of videos also from Andreas which anyone can see here to have more knowledge.Hence why I recommend skimming it on Github to see whether getting a physical copy makes sense for OP
Personally I've also been moving more towards physical copies lately, both to support the authors I appreciate and to lessen my screentime. Also at least to me reading a physical copy usually provides me with a clearer mind because I get less easily distracted and am in a different context than while reading something on a laptop or phone.
That being said, I feel like it's almost underappreciated that Andreas Antonopoulos is providing his book online, for free. That alone makes him support-worthy in my book (heh).