This textbook discusses the problems of agriculture and food systems globally and regionally using agroecology as the lens, with the goal of teaching the processes and techniques for understanding and re-evaluating rural landscapes (ecosystems) and farming systems. It clearly delivers the pedagogy of agroecology teaching and methodology for agroecology studies by the authors from worldwide experience, using experiential learning and action education of agroecology at the graduate education level. In 10 chapters, the book offers a concise but informative guide covering the interconnected ways that agroecology can inform and lead international strategies and local actions to address interwoven critical challenges, namely climate change, fresh water availability, and food insecurity.