This bitcoin technical intro book by Kalle Rosenbaum is seriously really good.
Digital text (free):
https://rosenbaum.se/book/grokking-bitcoin.html
https://github.com/kallerosenbaum/grokkingbitcoin
Physical print/typeset digital ($):
https://www.manning.com/books/grokking-bitcoin
https://www.amazon.com/dp/1617294640
Meant for those wanting to know details without knowing how to code. Well structured with increasing levels of complexity and revisions to get closer and closer to how bitcoin really works, supplemented with intuitive graphics.
YouTube interview with Kalle (Not nostr:npub12rv5lskctqxxs2c8rf2zlzc7xx3qpvzs3w4etgemauy9thegr43sf485vg ) :
https://www.youtube.com/live/6tHnYyaw0qw
