Upcoming Events

Featured Events

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Age Group
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Program Type
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This event is in the "Adults" group

Colonial Lighting:18th-Century Lighting Devices

6:30pm–8:00pm
Adults
Moriches Branch
Open
Registration Required
Registration will close on April 23, 2026 @ 6:30pm.
Library Branch: Moriches Branch
Room: Adult Rooms Combined
Age Group: Adults
Program Type: Information/Lecture
Registration Required
Event Details:

How did American Colonists navigate the dark? Tallow candles, a plate of grease holding a wick, and mirrors behind lights illuminated the home. Travelers carried punched tin lanterns and oil lamps lit the nighttime streets.

This event is in the "Adults" group
This event is in the "Everyone" group

Astronomy: Observe the Moon

7:30pm–8:30pm
Adults, Everyone
Moriches Branch
Library Branch: Moriches Branch
Room: Moriches Lawn
Age Group: Adults, Everyone
Program Type: Information/Lecture
Event Details:

See the moon like never before through the telescope! 

This event is in the "Adults" group

The Life of William Floyd

1:00pm–3:00pm
Adults
Main Library
Open
Registration Required
Registration will close on April 26, 2026 @ 1:00pm.
Library Branch: Main Library
Room: Community Room A+B
Age Group: Adults
Program Type: Information/Lecture
Registration Required
Event Details:

Join the Tri-Hamlet Group for a presentation on the Founding Father, William Floyd.

This event is in the "Adults" group

Guitar Lessons for Adult Beginners

6:30pm–8:00pm
Adults
Mastic Beach Branch
Full
Registration Required
Registration is closed because the event is full.
Library Branch: Mastic Beach Branch
Room: Adult Program Room
Age Group: Adults
Program Type: Information/Lecture, Music
Registration Required
This event is in the "Adults" group

Retirement Planning and Investment Workshop

2:00pm–3:00pm
Adults
Moriches Branch
Upcoming
Registration Required
Registration will open on April 29, 2026 @ 9:00am.
Library Branch: Moriches Branch
Room: Adult Rooms Combined
Age Group: Adults
Program Type: Information/Lecture
Registration Required
Event Details:

Join us for an informative session on investment basics and retirement planning led by a professional financial advisor and his team.

This event is in the "Adults" group

Sag Harbor in the Revolution

6:30pm–8:00pm
Adults
Moriches Branch
Upcoming
Registration Required
Registration will open on April 29, 2026 @ 9:00am.
Library Branch: Moriches Branch
Room: Adult Rooms Combined
Age Group: Adults
Program Type: Information/Lecture
Registration Required
Event Details:

Lecture and book signing by Sag Harbor in the Revolution author Zach Studenroth, who will tell the story of the 1777 Meigs Raid that destroyed British supplies and counted as an American victor

Library Closed

All Day
All Branches
Closing
Branches:
Main Library, Mastic Beach Branch, Moriches Branch, All three library buildings, Off Site, Online Program, Mastic Recreation Center
This event is in the "Adults" group

Vegetable Gardening

7:00pm–8:00pm
Adults
Moriches Branch
Upcoming
Registration Required
Registration will open on April 29, 2026 @ 9:00am.
Library Branch: Moriches Branch
Room: Adult Rooms Combined
Age Group: Adults
Program Type: Information/Lecture
Registration Required
Event Details:

In this class, participants will learn the basics of how to start a vegetable garden.  This presentation will also go over the most common types of vegetables that can be planted in the garden.

This event is in the "Adults" group

Fidelis Care Health Insurance Informational Tabling

12:00pm–3:00pm
Adults
Main Library
Library Branch: Main Library
Room: Fireplace Lounge Area
Age Group: Adults
Program Type: Information/Lecture
Event Details:

A representative from Fidelis Care will be at our Shirley location to share information about health insurance coverage options for individuals and families. Drop in with your questions. No appointment necessary!

This event is in the "Adults" group

Medicare vs. Medicaid: Key Differences Explained

6:00pm–7:00pm
Adults
Mastic Beach Branch
Upcoming
Registration Required
Registration will open on April 29, 2026 @ 9:00am.
Library Branch: Mastic Beach Branch
Room: Lobby Rooms Combined
Age Group: Adults
Program Type: Information/Lecture
Registration Required
Event Details:

Join Burner-Prudenti Law to discuss the difference between Medicare and Medicaid long-term care services.

This event is in the "Parents" group
Library Branch: Main Library
Room: Community Connections Table (Children)
Age Group: Parents
Program Type: Health & Wellness, Information/Lecture
Event Details:

Parents.

Drop-in.  No registration required.

This event is in the "Adults" group

Home Improvement: Your Home's Plumbing and Sanitary Waste Systems

10:30am–12:30pm
Adults
Main Library
Upcoming
Registration Required
Registration will open on April 29, 2026 @ 9:00am.
Library Branch: Main Library
Room: Community Room A
Age Group: Adults
Program Type: Information/Lecture
Registration Required
Event Details:

Learn the common terms used by a plumbing professional and the importance of maintaining your potable and wastewater systems.

Topics of Discussion:

This event is in the "Adults" group

"Community and Congregation: Ten Churches"

2:00pm–3:30pm
Adults
Off Site
Upcoming
Registration Required
Offsite Event
Registration will open on April 29, 2026 @ 9:00am.
Library Branch: Off Site
Age Group: Adults
Program Type: Information/Lecture
Registration Required
Event Details:

Join us for a gallery talk at the Bellport-Brookhaven Historical Society for MMSCL Patrons. 

Library Closed

All Day
All Branches
Closing
Branches:
Main Library, Mastic Beach Branch, Moriches Branch, All three library buildings, Off Site, Online Program, Mastic Recreation Center
This event is in the "Adults" group

Rules of the Road: Financial Literacy Seminar

7:00pm–8:00pm
Adults
Main Library
Upcoming
Registration Required
Registration will open on April 29, 2026 @ 9:00am.
Library Branch: Main Library
Room: Meeting Room 1
Age Group: Adults
Program Type: Information/Lecture
Registration Required
Event Details:

If you're like most of us, the road to your future and the realization of your life's dreams will require a solid saving and investing strategy.

This event is in the "Adults" group

Estate and Elder Law Workshop

6:30pm–7:30pm
Adults
Main Library
Upcoming
Registration Required
Registration will open on April 29, 2026 @ 9:00am.
Library Branch: Main Library
Room: Meeting Room 1+2
Age Group: Adults
Program Type: Information/Lecture
Registration Required
Event Details:

Join attorney and licensed social worker Kathleen Rose for a presentation on probate, Medicaid tips, planning for the future and avoiding caregiver stress disorder.

This event is in the "Adults" group

What Is the Meaning of Homespun?

6:30pm–8:00pm
Adults
Moriches Branch
Upcoming
Registration Required
Payment Required
Registration will open on April 29, 2026 @ 9:00am.
Library Branch: Moriches Branch
Room: Adult Rooms Combined
Age Group: Adults
Program Type: Information/Lecture
Registration Required
Payment Required
Event Details:

FEE: $10

Library Closed

All Day
All Branches
Closing
Branches:
Main Library, Mastic Beach Branch, Moriches Branch, All three library buildings, Off Site, Online Program, Mastic Recreation Center

Memorial Day

All Day
All Branches
Closing
Branches:
Main Library, Mastic Beach Branch, Moriches Branch, All three library buildings, Off Site, Online Program, Mastic Recreation Center
This event is in the "Adults" group

Income Protection Seminar

6:00pm–7:00pm
Adults
Moriches Branch
Upcoming
Registration Required
Registration will open on April 29, 2026 @ 9:00am.
Library Branch: Moriches Branch
Room: Adult Rooms Combined
Age Group: Adults
Program Type: Information/Lecture
Registration Required
Event Details:

The Importance of Income Protection:

This event is in the "Adults" group

10 Warning Signs: Alzheimer’s and Dementia

7:00pm–8:00pm
Adults
Main Library
Upcoming
Registration Required
Registration will open on April 29, 2026 @ 9:00am.
Library Branch: Main Library
Room: Meeting Room 1
Age Group: Adults
Program Type: Information/Lecture
Registration Required
Event Details:

This course helps caregivers recognize common signs of the disease in themselves and others and identify next steps to take, including how to talk to their doctor.

Library Closed

All Day
All Branches
Closing
Branches:
Main Library, Mastic Beach Branch, Moriches Branch, All three library buildings, Off Site, Online Program, Mastic Recreation Center

Library Closed

All Day
All Branches
Closing
Branches:
Main Library, Mastic Beach Branch, Moriches Branch, All three library buildings, Off Site, Online Program, Mastic Recreation Center
This event is in the "Adults" group

Remember Liss

3:00pm–5:00pm
Adults
Moriches Branch
Upcoming
Registration Required
Registration will open on May 27, 2026 @ 9:00am.
Library Branch: Moriches Branch
Room: Adult Rooms Combined
Age Group: Adults
Program Type: Information/Lecture
Registration Required