During the pandemic, most listed events are virtual; please call ahead before going to any event.

CREATING A CHECKLIST FOR GENEALOGY RESEARCH

Learn how to identify gaps in your genealogy research and then move to the next level of research, 7 to 8 p.m. Monday, hosted by Harborfields Library, free, register for a link at harborfieldslibrary.org, 631-757-4200.

PICASSO AND THE MASTERS

Discussion about the artistic influences of painter Pablo Picasso, 3 to 4:30 p.m. Monday, hosted by Port Washington Library, free, visit pwpl.org for link information, 516-883-4400.

SALEM — A HAUNTED HISTORY TOUR

Virtual tour of Salem, Massachusetts, travel through the town’s haunted history, from witch trials to sea captains and ghost ships, 7 to 8 p.m. Monday, hosted by Mastics-Moriches-Shirley Community Library, free, visit communitylibrary.org for link, 631-399-1511.

BAKING DEMONSTRATION

Learn how to make pumpkin-pie muffins with cinnamon sugar, 11-11:30 a.m. Tuesday, hosted by Plainedge Public Library, free, visit facebook.com/plainedgepubliclibrary to view, 516-735-4133.

BOOK DISCUSSION

Discuss “An American Sunrise,” the poetry collection by Joy Harjo, 6 to 7 p.m. Tuesday, hosted by Longwood Library, free, register for a link at longwoodlibrary.org, 631-924-6400.

UNCLAIMED-FUNDS WORKSHOP

Gain knowledge of the history and facts of unclaimed funds, email questions in advance to lsolomon@osc.ny.gov, 7 to 8:15 p.m. Tuesday, hosted by Port Washington Library, free, visit pwpl.org for link, 516-883-4400.

OPERA TALKS

Explore the history behind the folk opera and play “Porgy and Bess,” as well as selections from legendary productions, 1 p.m. Tuesday, hosted by Rockville Centre Public Library, free, register for a link at rvclibrary.org, 516-766-6257.

GENTLE CHAIR YOGA

Learn yoga moves that can be done sitting in a chair or using a chair for support, use a sturdy chair with no wheels, 11 a.m. to noon Wednesday, hosted by Center Moriches Library, free, Suffolk County cardholders can register for a link at centermoricheslibrary.org, 631-878-0940.

WHAT’S NEW TO MEDICARE IN 2022 AND BEYOND

Discuss the new Medicare laws and how they affect you, with a review of Medicare Basics, Medicare Advantage plans, which new benefits are approved by Medicare for 2022 and learn how to find out if your medications are still on the drug plan formulary, 7 to 8:30 p.m. Wednesday, hosted by South Huntington Library, free, register for a link at shpl.info, 631-549-4411.

CLORIS LEACHMAN

A look at the life and work of actress Cloris Leachman, 1 to 2:15 p.m. Wednesday, hosted by Peninsula Library, free, visit peninsulapublic.org for a link, 516-239-3769.

THE FAMILY KITCHEN ORGANIC GARDEN

Learn about many aspects of organic gardening with an emphasis on meal planning and feeding your family something you grow all year long, 2 to 4 p.m. Thursday, Bethpage Public Library, 47 Powell Ave., Bethpage, free, register, held in-person (limited space) and on Zoom, bethpagelibrary.info, 516-931-3907.

DIABETIC MANAGEMENT & EDUCATION PROGRAM WITH HEALTH FAIR

Get health information, see therapeutic drumming demonstrations, sample diabetes-friendly recipes, get a flu shot, check your blood pressure, and more. The event includes an adopt-a-pet area, arts and crafts, police discussion about common senior-focused scams, support group meetings and the latest in adaptive equipment, as well as goody bags and giveaways, 11 a.m. to 1 p.m. Thursday; rain date Oct. 29, Lynbrook Restorative Therapy and Nursing, 243 Atlantic Ave., Lynbrook, free, 516-634-1400.

PREPARING YOUR ESTATE PLAN

Learn the basic steps of planning for your estate, including the function of a will and the different types of trusts, 7 to 8 p.m. Thursday, hosted by Harborfields Library, 31 Broadway, Greenlawn, free, register, harborfieldslibrary.org, 631-757-4200.

BILLY WILDER

Discussion on the life and work of film director Billy Wilder, 11 a.m. to noon Thursday, hosted by Hewlett-Woodmere Library, free, visit hwpl.org for a link, 516-374-1967.

SOFT PRETZEL DEMONSTRATION

Learn how to make four jumbo pretzels, 2 to 3 p.m. Thursday, hosted by Northport-East Northport Library, free, register for a link and the recipe at nenpl.org, 631-261-6930.

SAGAMORE HILL TOUR

A park ranger presents a virtual tour of Sagamore Hill National Historic Site, which was the home of President Theodore Roosevelt, 1 p.m. Thursday, hosted by Seaford Public Library, free, register for a link at seafordlibrary.org, 516-221-1334.

CHINESE LAO AMERICAN COOKING

Learn how to make vegetable lo mein, pork fried rice and chicken with cashews, recipes provided, 7 to 8 p.m. Thursday, hosted by Emma S. Clark Library, free, register for a link at emmaclark.org, 631-941.4080.

HALLOWEEN AT THE OPERA

Explore the art of revenge through a ghost from Mozart’s “Don Giovanni,” a witch from Verdi’s “Il Trovatore,” and a deadly diva from Puccini’s “Tosca,” as well as the performance of an aria, noon to 1:30 p.m. Friday, hosted by Port Washington Library, free, visit pwpl.org for a link, 516-883-4400.

FRIDAY NIGHT DIALOGUE

Lynne Weikart discusses her book, “Mayor Michael Bloomberg: The Limits of Power,” which examines the Bloomberg administration from a policymaking perspective, 7 p.m. Friday, hosted by Shelter Island Library, free, register for a link at shelterislandpubliclibrary.org, 631-749-0042.

Compiled by Gina Tabarus with LaToya Rodriguez, Daniel Variano and Keri Wall-Treudler