How would people in the 20th century find a niche store

Question

Say you were in the 1920s or 1970s. If you wanted to find a store to buy music or just any store that catered to a specific niche, how would you have gone about finding out what your options were?

In: Other

Answer 1

In addition to things like the Yellow Pages, there was a ton of word of mouth and people sharing information in hobby groups, etc. “Dude! Mike said that Vinyl-O-Rama is getting the new Maiden album next week!”