Edge-Notched Card

I recommend a couple of books from around the peak of edge-notched punched-card use:

Casey, Perry, Berry, and Kent, "Punched cards; their applications to science and industry", 2nd ed. (1958), https://catalog.hathitrust.org/Record/001163217 .

Bourne, C. P. "Methods of Information Handling" (1963), https://www.worldcat.org/title/methods-of-information-handli...

Here are the cards I made a few years back - https://twitter.com/nathanbroon/status/750465911241502721 .