A book sale and signing of "Long Island's State Hospitals" by Joseph M. Galante will be held on Saturday, April 18 at 1 p.m. Author-historian Galante will walk participants through the 111-year history of Long Island's state hospitals. The event includes light refreshments an admission to other current exhibits. The event is free for members and $5 for non-members, reservation is required, call (631)727-2811 ext. 100.