I went to Barter Book in 2010, during our GB roadtrip, and wondered why they had so many “KCACO” items in their shop, as I had never seen such a poster before.
The lovely lady at the counter then told me the story.
I fell in love with the store, it’s beautiful. Check out some pics on my blog, http://www.lisa-prosch.de/?p=660, if you want to.