I really liked this book https://www.goodreads.com/en/book/show/2558730.Digital_Design_and_Computer_Architecture https://www.goodreads.com/en/book/show/2558730.

I really liked this book https://www.goodreads.com/en/book/show/2558730.Digital_Design_and_Computer_Architecture https://www.goodreads.com/en/book/show/2558730.Digital_Desig... It teaches the basics and then how to build a MIPS processor. I know that's only part of what nand 2 tetris aims for. But still good.