The Warren County branch of Scenic Regional Library and the Warren County Historical Society know that what looks like nothing to some people may be a form of communication to others.The public is encouraged to learn about hoboglyphs at a presentation Tuesday, Sept. 20, at 6 p.m. at the Warren County History Museum, 102 W. Walton St. in Warrenton.During the Great Depression, nomadic workers traveled by rail and had to learn how to communicate with each other even though some couldn’t read or write.People called these folks hobos and they traveled the country by jumping railroad cars at the start of the 20th century. They left unique codes, or hoboglyphs, for each other on buildings, fences, and trestles.These coded messages, provided information on places to camp, find a meal, or dangers that lay ahead.Hobos were often illiterate, so it was important for these messages to be easy to read but look like random markings to everyone else for secrecy.The presenter, Sally Tunison, will tell the audience about these things and much more. To attend, sign up at the library, or call 456-3321.Hoboglyphs