Author and popular Boston talk radio host Howie Carr will be signing copies of his newest crime novel, “Hard Knocks.” He has written two previous best-sellers, “The Brothers Bulger” and “Hitman.”

WHEN: 11 a.m. to 1 p.m. Saturday

WHERE: Nonesuch Books & Cards, Mill Creek Shopping Center, South Portland

HOW MUCH: Free

INFO: Nonesuchbooks.com; 799-2659