Saturday 6/24: Juan Martinez, Jimin Han, and Paul Cohen celebrate debut fiction. Spoonbill & Sugartown, 7 p.m., free. Sunday 6/25: Rob Hill, Omotara James, Meghan E.B. Lin, and Phil Demise Smith celebrate the launch of the latest issue of Newtown Literary. Socrates Sculpture Park, 4 p.m., free.