Lighting a Path While Immersed in Presence: A Wayward Introduction.- Defining Presence.- Presence: Form, Content and Consciousness.- Affect, Availability and Presence.- Intention, Action, Self and Other: An Evolutionary Model of Presence.- An Action Based Approach to Presence.- Spatial Presence Theory: State of the Art and Challenges Ahead.- Ways to Measure Presence: Review and Future Directions.- An Integrative Approach to Presence and Self-Motion Perception Research.- Patterns of Place: An Integrated Approach for the Design and Evaluation of Real and Virtual Environments.- Collaboration in Immersive and Non-Immersive Virtual Environments.- Presence-Inducing Media for Mental Health Applications.