Monday, Aug. 19

Long Island native Tim O'Mara reads from his crime novel "Sacrifice Fly" (Minotaur). At 1 p.m., North Bellmore library, 1551 Newbridge Rd., North Bellmore; 516-785-6260, northbellmorelibrary.org

Tuesday, Aug. 20

New York magazine contributing editor Robert Kolker discusses his book about the Gilgo Beach murders, "Lost Girls: An Unsolved American Mystery" (Harper). At 7 p.m., Barnes & Noble, 600 Smith Haven Mall, Lake Grove; 631-724-0341, barnesandnoble.com

Friday, Aug. 23

The co-owners of Canio's Books in Sag Harbor, Kathryn Szoka and Maryann Calendrille, talk about "Sag Harbor Is: A Literary Celebration" (Harbor Electronic Publishing), a collection of essays, poems and photographs. Tickets $15. At 5 p.m., Hampton Library, 2478 Main St., Bridgehampton; 631-537- 0015 hamptonlibrary.org

Sunday, Aug. 25

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Architecture preservationist Caroline Rob Zaleski discusses her book, "Long Island Modernism: 1930-1980" (W.W. Norton). At 2 p.m., BookHampton, 41 Main St., East Hampton; 631-324-4939, bookhampton.com