Libraries & sustainability: programs and practices for community impact: edited by René Tanner, Adrian K. Ho, Monika Antonelli and Rebekkah Smith Aldrich, Chicago, ALA Editions, 2021, 170 pp., $127.90, ISBN 978-0-8389-3794-5 (softcover), ISBN 978-0-8389-3647-4 (PDF). Issue 4 (2nd October 2022)