Comic Con is one of the biggest and oldest pop culture fan conventions in world, but it didn't start off that way. In 1970's only a few hundred people took part. David Glanzer was one of them. He was a high school kid who loved comics. Now he's one of the main organizers of this massive events. KPBS Art Reporter Beth Accomando talked to him recently about what's new this year and how much things have grown.
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