I became a history student in 1976 after reading Anthony Brown’s “The Bodyguard of Lies”. Spent 8-9 years reading everything I could find related to WWII Sig/Intel. Then more modern related material, some crypto analysis history. Starting with Herbert Yardley and then David Khan.
Yardleys’s “The Chinese Black Chamber” was a very good read.
Years later read Bamford’s “The Puzzle Palace” right after it was released. Then Deep Black and some others.
There are some very interesting Early American books about this type of subject.
Most people are not aware that Thomas Jefferson built the 1st rotary encryptor, it was made from deer horn cut in thin slabs with a screw securing the sequence disks in the center, inscribed on outside. Disks could be re-sequenced to change encoding.
My that has been a long time ago.
If you want a good read about privacy in America, try Vance Packard’s “The Naked Society” written in 1964. Even though it is dated at times, it is very chilling.