“Ecological Economics: A Workbook for Problem-Based Learning” by Herman E. Daly, Joshua Farley, and Jon Erickson is a trade paperback book published by Island Press in 2005. This workbook is designed for college audiences and covers subjects such as life sciences, environmental economics, and sustainable development. It includes illustrations and problem-based learning exercises to engage readers in applying ecological economics concepts to real-world issues. With 120 pages, this book offers a practical approach to understanding complex ecological and economic systems through interactive and informative activities.