Finster Fest, the annual celebration of folk art at Howard Finster’s Paradise Garden outside Summerville, Ga., has invited me to speak about “Smokelore: A Short History of Barbecue in America.” It isn’t as strange as it sounds. One of the things we love about barbecue is the eccentricity of it. Many barbecue places are like little folk art environments, and the food itself could be regarded as a great example of vernacular art. Talk at 2:30, but I’ll be around the whole afternoon to talk and sign books.