Well, my primary sources were Dragnet (the tv show, not the movie some 20 years later) and Adam 12, where I learned about "hopheads" , "bindles" , "lids" , and "hipsters" who could have "good trips" , or, like Art Linkletter's daughter, have a fatal "bad trip", (also in her case called "defenestration" by Sgts. Friday and Gannon). Also movies, mostly about heroin: Frank Sinatra in Man With The Golden Arm , and somebody or other in A Hatful Of Rain , Al Pacino in Panic In Needle Park about 1969, and then about 1980 or so Nick Nolte in a movie version of Richard Stone's novel, Dog Soldiers called, I am so sorry to say, Who'll Stop The Rain" , but this was was more about Zen, death, Vietnam, CIA, #1 "Chinese White" heroin, cynicism, co-dependance, corruption and terminal commitment to prinicple than actual drug culture as such.
Yeah, so that's how the real cool dudes and dudettes learned way back when.