Artist-in-Residence Michael Rosato, who recently completed the newest Cook Foundation mural on Main Street, will give a talk on “The Transformative Power of Public Art” at 1 p.m. Sunday at Arts on Main in Gloucester.

Viewable from Main Street and Route 14, the mural, which is on the building adjacent to the old Texaco station, celebrates T.C. Walker and brings to life his impressive life story, said a press release. The powerful effect of this art on the community will be the touchstone of Rosato’s talk about public art. A dedication ceremony begins at 3 p.m. Sunday.

Rosato has created murals in 22 states in the past 27 years. He specializes in narrative murals, often painted with trompe l’oeil, said the release. His work can be seen in venues across the country, in places as varied as the Oklahoma National Memorial in Oklahoma City, the Texas Motor Speedway in Fort Worth, the Smithsonian Museum of Natural History in Washington, D.C., the Bacardi headquarters in San Juan, Puerto...