LI book signings, week of Oct. 6

Novelist Joanna Hershon discusses and signs copies of "A Dual Inheritance" (Ballantine). Tickets, $50, include breakfast; registration required. At 10:30a.m., Sid Jacobson Jewish Community Center Gallery, 300Forest Dr., East Hills; 516-484-1545, sjjcc.org/author

Garden City author Nelson DeMille speaks and signs copies of "The Quest" (Center Street). At 6 p.m., Forest Books, 182 Birch Hill Rd., Locust Valley, 516-759-1489

Sag Harbor author Mac Griswold reads from "The Manor: Three Centuries at a Slave Plantation on Long Island" (FSG). At 7 p.m., Shelter Island Library, 37 N. Ferry Rd., Shelter Island; 631-749-0042, shelterislandpubliclibrary.org

Poet Grace Schulman reads from her new collection, "Without a Claim" (Mariner). At 5 p.m., Canio's Books, 290 Main St., Sag Harbor; 631-725-4926, caniosbooks.com