Multicriteria analysis (MCA) has been increasingly used in environmental decision-making to support the identification of suitable courses of action, by integrating factual information coming for example from field surveys or impact modelling, with value-based information collected through stakeholder engagement This book provides an introduction to key concepts of MCA, and a series of case studies that illustrate the application of MCA to a variety of environmental decision-making problems. Topics include Environmental Impact Assessment (EIA), protected areas planning and zoning, tourist infrastructures planning, forest restoration and nature conservation. Techniques described in the different cases include GIS-based MCA, sensitivity analysis, optimisation techniques, land suitability analysis, and others. The book provides a compact reference that can be used by researchers as a key resource offering an update and overview of the field, as well as by practitioners and planners/decision makers as a source of inspiration for their activity. Additionally, the book will be a suitable textbook for both under and post-graduate courses in a broad range of curricula, including Environmental Sciences, Environmental Engineering, Planning and Architecture, Geography, Economics, Decision Sciences.