This book addresses the theoretical and scientific foundations and practical research of technologies in clean production processes based on multi-criteria decision-making. The analyzed/selected model is a realistic and appropriate model for the field of research. Comparisons are made with traditional decision-making methods and new advanced scientific methods are incorporated. The book will be of interest to engineers and researchers who focus on multi-criteria decision-making and research in clean production processes, as well as students and professors at universities that deal with this field.