Youths - from scribblers to pavement Picassos - can let their chalk do the talking during the#xa0;Chalk Art#xa0;program at 2 p.m., Aug. 25, at Mentor Public Library's Headlands Branch, 4669 Corduroy Road in Mentor.First, children will learn about famous chalk artist Julian Beever. Then, they'll draw their own chalk masterpieces on the sidewalk outside and even on the building of the Headlands Branch, according to a news release.