Comment by indescions_2018

Definitely could have used this back in school ;)

Nice companion is AllAboutCircuits online textbooks:

https://www.allaboutcircuits.com/textbook/digital/

Archive has the original Bell Labs manual from 1951, with some really beautiful logic gate diagrams

The Design Of Switching Circuits by William Keister, Alistair E Ritchie, Seth H. Washburn

https://archive.org/details/TheDesignOfSwitchingCircuits