Found in 2 comments on Hacker News
yolesaber · 2016-06-26 · Original thread
If you are into industrial and globalized signage / semiotics, do yourself a favor and check out the Symbol Sourcebook --

Some of the symbolism they use for computer operations are fascinating

brudgers · 2013-05-13 · Original thread
I have by my desk Henry Dreyfuss's Symbol Sourcebook [1972 edition]. It contains symbols he collected over a lifetime - he died in '72. Rococo is the fad [Perlis says it comes before rubble]. Flat design dominates when clear communication becomes more important than signalling via fashion. There's a reason stop signs don't have gradient fills.

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