Monday, Sept. 18

Robert Mrazek, who represented New York’s 3rd Congressional District on Long Island, discusses his novel “And the Sparrow Fell” with former New York congressman Steve Israel. At 7 p.m., Book Revue, 313 New York Ave., Huntington; 631-271-1442, bookrevue.com

Tuesday, Sept. 19

Biologist James T. Costa talks about “Darwin’s Backyard: How Small Experiments Led to a Big Theory.” At 6:30 p.m., Canio’s Books, 290 Main St. Sag Harbor; 631-725-4926, caniosbooks.com

Healing medium Anysia Marcell Kiel talks about and signs copies of “Discovering the Healer Within: Use Chakras & Intuition to Clear Negativity & Release Pain.” At 7 p.m., Book Revue, 313 New York Ave., Huntington; 631-271-1442, bookrevue.com

Saturday, Sept. 23

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Authors Josh Greenfield (“Full of Wonderment”), Jim Ryan (“Simple Happiness”) and Andrew Hess (the Detective Ryan Series), discuss their work and sign their books. At 2 p.m., The Dolphin Bookshop, 299 Main St., Port Washington; 516-767-2650, thedolphinbookshop.com

James P. MacGuire discusses his “Real Lace Revisited: Inside the Hidden World of America’s Irish Aristocracy.” Register in advance. At 3 p.m., East Hampton Library, 159 Main St., East Hampton; 631-324-0222 ext. 3, easthamptonlibrary.org