The book "A Philosophy of Software Design" should interest you then:
https://www.amazon.com/t/dp/1732102201
It argues, among other things, that deep interfaces matter more than code complexity inside a module.
That one was the first software book I read in a while where I got to the end and felt like if I wrote a book myself then that is very close to what I would want it to say. I highly recommend it to anyone who has built up a bit of practical programming experience and wants to improve further.