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The City of Cambridge is extending the current prohibition on City-sponsored community events, events permitted for the use of City parks, or other City-sponsored public gatherings through March 31, 2021. Additionally, to ensure the safety of the public and City staff, in-person appointments at City buildings, including contactless holds pick-up at the Cambridge Public Library, will be suspended from Saturday, January 2, 2021, through Monday, January 18, 2021.

Celebrate National Moth Week in style! Step 1: Drop by the Collins Branch to make a moth mask with guidance and costume advice from Cambridge Wildlife Arts. Step 2: Debut your mask on the red carpet at the second annual Cambridge Moth Ball on Wednesday, July 23 from 7:30-10 p.m at the Fresh Pond Reservation's Kingsley Park. Learn all about moths and their role in the ecosystem, participate in "mothing," and take photographs of moths. Costumes encouraged for children & adults!

Join us to learn how to transform your game ideas into a playable reality. Recommended for ages 10-14. Funding for Summer Reading has been generously provided by the City of Cambridge, Cambridge Public Library Foundation, Friends of the Cambridge Public Library and the Massachusetts Board of Library Commissioners.

Learn to 3D print items in our library and create a 3D model to print using our Prusa 3D printers! Before taking this workshop: Complete Hive Safety Training Create a free Tinkercad account at www.tinkercad.com You will get hands-on experience running the 3D printer, gain fundamental 3D modeling skills using Tinkercad, and earn your 3D Printing certification for future reservations in The Hive. Create a Tinkercad account at www.tinkercad.com prior to arriving. Parents may need to assist users under the age of 18 to create an account prior to arriving. Registration is prioritized for patrons who will directly benefit from interpretation in American Sign Language. Please email thehive@cambridgema.gov to register. You must complete Hive Safety Training before registering for this workshop. Please arrive on time. If you are more than 10 minutes late, you will not be able to join the class.

Join herbalist Mo Katz-Christy for a meander through Danehy park to meet wintertime city plants and explore their medicinal uses! We will explore weeds and cultivated plants, trees and shrubs, and have lots of space for questions and conversation. Bring a notebook if you like, and meet us at the parking lot on Sherman Street (if you're late you should be able to find us -- we won't move too far too fast!). Registration is required. This event has been rescheduled from 2/27/25

In honor of Earth Day, spend your afternoon at the Library creating your own terrarium. In partnership with Emerald City Plant Shop, you will have the opportunity to learn more about different kind of plants and plant care. This event will be conducted in the front park area of the Library. In the case of rain, the class will be moved to the Rossi room. The Library will provide all needed supplies. There will be 2 timed sessions. Please make sure to choose the time that works best for you.

In honor of Earth Day, spend your afternoon at the Library creating your own terrarium. In partnership with Emerald City Plant Shop, you will have the opportunity to learn more about different kind of plants and plant care. This event will be conducted in the front park area of the Library. In the case of rain, the class will be moved to the community room. The Library will provide needed supplies. There will be 2 timed sessions. Please make sure to choose the time that works best for you.

Join us in Joan Lorentz Park from 1-2:30 p.m. for a concert celebrating the roots of folk music with Reclaiming Folk, a concert series that celebrates and honors people of color in folk music, created by singer-songwriter Naomi Westwater. Back by popular demand, this event will feature original compositions—performed by Valeria Orrantia, Anand Nayak, and Naomi Westwater—as well as cover songs that honor the musicians who came before, short interviews with the musicians about folk music, and time for a Q&A from the audience. Registration is not required.

Our Magic Tree House book group for kids ages 5-10 meets the first Friday of the month. Pick up a copy of the book beforehand. Our October book is Magic Tree House #2, "The Knight at Dawn." This event is onsite at O'Connell, with the option to attend virtually. A Zoom link will be sent to all registered participants 1 hour before the event. Need a laptop or hotspot to participate? Call the O'Connell Branch at 617-349-4019. For questions about the Magic Tree House book club, please email cmeisler@cambridgema.gov.

Lights of Your World is an introductory astrological workshop with Laura Campagna that uses the birth chart as a portal for engagement with the cosmos. We will explore how the planets connected to the location of your Sun, Moon, and Rising help us gain insight and understanding into our own essential nature. In this fun 2-hour workshop, we will explore the seasons, elements, and planetary days of the week, color, and gems to enchant your life through astrology. For full participation, please bring your complete birth data: date, time, and location.