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CPL Nature Club: Seed Swap, Half-Day Take & Make, U.S. Censuses, 1790-1950, Read to a Dog, and More!

A block party is a community event hosted on a City street by a group of neighbors, a non-profit organization, or an association. During a block party, a portion a single block is closed to through traffic.

Shop our community swap for free spooky season costumes for all ages! Drop gently worn costumes off at the O'Neill Branch from Monday September 28-Friday October 2. Items must be clean and delivered to a staff member during open hours. No shoes or pretend weapons please.

The Inspectional Services Department issues plumbing permits for all work to be performed.

The City Manager’s Outstanding City Employee Award is an opportunity to recognize our colleagues for their exceptional contributions to public service. The Brian Murphy Award for Leadership in the Workplace and Public Service is a distinguished recognition given to leaders who display extraordinary qualities in the workplace and dedication to community service.

This is a companion document to the Draft Alewife Preparedness Plan. It describes a range of resiliency strategies using a consistent, easy-to-read format for a broad audience.

Volunteering at the Cambridge Community Learning Center (CLC) is a great way to connect with your community while helping adult learners reach their goals.

Celebrate Jasmine Warga's A Rover's Story with Mad Science's Radical Robots Workshop! Explore a world of robots and try your hand at building your own in this hour-long workshop. Recommended for children ages 5 and up. Registration is required. Please register all attending children (adults do not need to register). This event is part of a special series promoting our 2026 Curious George Lecture (CGL) with Jasmine Warga, award-winning author of A Rover's Story, Other Words for Home, and many other popular children's books. Funding is generously provided by the Cambridge Public Library Foundation.

What happens when mental illness meets homelessness and there’s nowhere to turn? What does healthcare look like when you’re sleeping outside, alone, and invisible? Join NAMI Cambridge/Middlesex and the Cambridge Public Library for an unflinching look at healthcare on the margins as Dr. Jim O’Connell, founding physician and President of Boston Health Care for the Homeless Program (BHCHP) shares stories, insights, and hard truths from a lifetime spent caring for patients—not in pristine clinics but in shelters, on sidewalks, and under bridges. Moderated by Dr. Rich Parker, this one-night event will explore the barriers so many in our community face when mental illness goes untreated, housing is out of reach, and support feels out of sight. Cosponsored by Cambridge Public Library. Registration is required.

Due to unforeseen circumstances, this event has been cancelled at this time. We apologize for the inconvenience. Join local artist Brooke Lambert for an introduction to painting with watercolor. Learn at your own pace to paint still life in a relaxed and welcoming environment. This class will introduce techniques in color mixing, observational painting and composition. You will come away from this class with beautiful watercolor paintings and a greater understanding and appreciation for the medium of watercolor. This class is for adults with all levels of experiences and will cover wet on wet and wet on dry techniques, masking, pressing, shading and light techniques, ink washes and pattern making. Registration is required and opens Thursday, May 7 at 10 a.m.