Brooklyn College sociology professors Kenneth Gould and Tammy Lewis, widely recognized as campus leaders in advancing sustainability initiatives, have released the fourth edition of their acclaimed co-edited volume, Twenty Lessons in Environmental Sociology. This text is celebrated as the leading undergraduate resource in the field nationwide, and it continues to enrich both the Urban Sustainability Program and the Department of Sociology at Brooklyn College. First published in 2009, the book has become a cornerstone in environmental sociology curricula. It has been used in 41 states—as well as in Washington, DC, and four Canadian provinces—and at more than 170 colleges and universities, including Brown, UC Berkeley, Cornell, Northeastern, Columbia, Stony Brook, Vanderbilt, Tulane, UNC-Chapel Hill, Notre Dame, University of Colorado, Washington State University, University of Oregon, and John Jay College of Criminal Justice of CUNY. Unlike traditional environmental studies texts, Twenty Lessons in Environmental Sociology adopts a distinctly sociological perspective, offering twenty carefully curated case studies authored by experienced educators and researchers. The result is a lively, adaptable collection that distills the core ideas of environmental sociology into concise, accessible chapters—making it suitable for students across diverse academic backgrounds.