(WILLIAMSTOWN, Mass.) – Grammy Award-winning singer-songwriter Janis Ian comes to The Clark for a free book reading on Thursday, April 19, 2012, at 5:30 pm, and a concert on Friday, April 20, at 8 pm. Ian’s breakthrough hit, “Society’s Child (Baby, I’ve Been Thinking),” written about interracial romance when she was just 13 years old,…