Oh boy. Is there an aspect you specifically want more info on? I’m pretty well-versed in protocol-level (90s-teens) internet, but minimally versed in intra- (acks and handshakes and packet flow diagrams) or sub- (seven layer model, layer2 vs layer3 firewalls) -protocol details. If you’re looking for math on how internet routing works it’s very different than, say, TLS cryptography. And the wrong book on either is more likely to be drily technical than societally illuminating.
In many ways computers are designed to black box items “below” your need-to-know also. Principles like “routing around damage” or “information wants to be free” aren’t always technical at all but the implementations are.