Wilderness provides a multidisciplinary introduction into the diverse ways in which we make sense of wilderness. Drawing upon key theorists, philosophers, and researchers, it argues for a relational and process based notion of the term and understands it as a keystone for the examination of issues from environmental aesthetics to more-than-human relations. The text presents important recent case studies and provides summaries of key points, further readings, web resources as well as discussion questions. It is designed for courses and modules on the subject at both postgraduate and undergraduate levels.