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Join Earthwise Aware (EwA) for an interactive walk to observe, document, and take part in shaping urban spaces that work with nature. Together, we will explore how design choices and climate pressures shape the ecological value of our everyday green spaces, and document habitat conditions using simple citizen science tools. Starting at the library lawn, we will examine spaces that appear green but often function poorly. Manicured lawns and sparse tree plantings may look inviting, yet they frequently support little biodiversity and can limit soil health and resilience. What makes a space truly nature-friendly? We will record what is present, what is missing, and what that tells us about ecological function. During the walk, we will: Observe and document plant communities and habitat quality Identify signs of low and high ecological function Compare conventional landscapes with more resilient plantings such as native beds or meadow patches Contribute real data that supports local ecological understanding and decision making This is participatory science in practice. Your observations will feed into broader efforts to track urban biodiversity and inform better land use choices. The program will meet outside the library in Joan Lorentz Park. Registration required. Rain date: Wednesday May 6

Baby Lapsit is canceled today, 1/20. We apologize for the inconvenience. Bounces and rhymes for our youngest library patrons. Recommended for babies 0-18 months and their caregivers.

Come join Rockabye Beats for an interactive, musical program experience! We'll sing, play, explore instruments, dance, pretend, learn a little Spanish, and show off our goofy side. For children of all ages and their caregivers. Funding for Summer Reading has been generously provided by the City of Cambridge, Cambridge Public Library Foundation and Friends of the Cambridge Public Library.

Join Earthwise Aware for a thought-provoking workshop examining how land use and climate change influence the design, function, and future of urban green spaces. Starting at the library’s front lawn, we will explore how conventional designs can undermine biodiversity and tree health. What makes a space truly nature-friendly? Can a lawn, sidewalk, or plaza be transformed into habitat? We will compare low-functioning green spaces with examples of micro-forests, native plantings, and meadows. Along the way, we will observe seasonal changes in plants and wildlife through the lens of phenology, the study of nature’s calendar. We will also introduce simple participatory science tools that help monitor habitat quality, foster community engagement, and inform better decisions. Even a modest native plant patch can be a pocket of resilience. Come learn how to spot, support, and reimagine urban nature that works with the ecosystem, not just mimics it. The program will start with a workshop in the Rossi Room, then move outside to Joan Lorentz Park. Registration required.

This Month's Read: The City of Brass by S. A. Chakraborty Reading Interests: The group concentrates on science fiction and fantasy. An advanced reading schedule is published each fall. Example selections include: Neuromancer by William Gibson and The Lies of Locke Lamora by Scott Lynch. Requirements: A love of speculative fiction and a desire to talk about books. The group is friendly and informal. How to get the print book: Copies of the print book are set aside at the Main Library Question and Answer desk on the ground floor. Visit the Main Library at 449 Broadway during service hours and a staff member can help you check out a copy. E-books and digital audiobooks are available on Libby or Hoopla. We'll meet in the Rossi Room on the ground floor of the Main Library. For more information, contact Carrie at csauder@cambridgema.gov.

This Month's Read: 2026 Hugo Award Nominees for Best Novelette and Short Story (listed here) Reading Interests: The group concentrates on science fiction and fantasy. An advanced reading schedule is published each summer. Example selections include: Neuromancer by William Gibson and The Lies of Locke Lamora by Scott Lynch. Requirements: A love of speculative fiction and a desire to talk about books. The group is friendly and informal. How to get the print book: Copies of the print book are set aside at the Main Library Question and Answer desk on the ground floor. Visit the Main Library at 449 Broadway during service hours and a staff member can help you check out a copy. E-books and digital audiobooks are available on Libby or Hoopla. We'll meet in the Rossi Room on the ground floor of the Main Library. For more information, contact Carrie at csauder@cambridgema.gov.

This Month's Read: The City in Glass, by Nghi Vo Reading Interests: The group concentrates on science fiction and fantasy. An advanced reading schedule is published each summer. Example selections include: Neuromancer by William Gibson and The Lies of Locke Lamora by Scott Lynch. Requirements: A love of speculative fiction and a desire to talk about books. The group is friendly and informal. How to get the print book: Copies of the print book are set aside at the Main Library Question and Answer desk on the ground floor. Visit the Main Library at 449 Broadway during service hours and a staff member can help you check out a copy. E-books and digital audiobooks are available on Libby or Hoopla. For this meeting only, we'll meet in the Community Room on the L2 basement floor of the Main Library. For more information, contact Carrie at csauder@cambridgema.gov.

Due to the popularity of Sifu Diaz's classes, we expect participants to attend all sessions and participation in this program will be decided by lottery. Join us in this twelve-week Tai Chi Paradigm practice, which focuses on the mind and body connection. Tai Chi is a fluid sequence of movements choreographed in a low impact routine. To enter the lottery, please register for the waitlist below. This waitlist will constitute the pool from which 15 names will be drawn randomly. Registration will open Friday, August 1 at 9AM and close Friday, August 15 at 5PM. Participants selected will be notified on Wednesday, August 20. This is an in-person event in the Community Room, Main Library. Sponsored by the Cambridge Public Library Foundation

Due to the popularity of Sifu Diaz's classes, we expect participants to attend all sessions and participation in this program will be decided by lottery. Join us in this twelve-week Tai Chi Paradigm practice, which focuses on the mind and body connection. Tai Chi is a fluid sequence of movements choreographed in a low impact routine. To enter the lottery, please register for the waitlist below. This waitlist will constitute the pool from which 15 names will be drawn randomly. Registration will open Friday, August 1 at 9AM and close Friday, August 15 at 5PM. Participants selected will be notified on Wednesday, August 20. This is an in-person event in the Community Room, Main Library. Sponsored by the Cambridge Public Library Foundation

Due to the popularity of Sifu Diaz's classes, we expect participants to attend all sessions and participation in this program will be decided by lottery. Join us in this twelve-week Tai Chi Paradigm practice, which focuses on the mind and body connection. Tai Chi is a fluid sequence of movements choreographed in a low impact routine. To enter the lottery, please register for the waitlist below. This waitlist will constitute the pool from which 15 names will be drawn randomly. Registration will open Friday, August 1 at 9AM and close Friday, August 15 at 5PM. Participants selected will be notified on Wednesday, August 20. This is an in-person event in the Community Room, Main Library. Sponsored by the Cambridge Public Library Foundation