Foreword. Introduction. Section 1: Selecting the Crew/Team. 1. Selection for Extreme Environments. 2. Job Analysis and Alternative Methods of Job Validation. 3. Development of Experiential Exercises for Selection. Section 2: Training the Crew/Team. 4. Methods of (technical) Training to Enhance Retention. 5. Team Training. 6. Group Living and Caring for Team and Self. Section 3: Supporting the Crew/Team. 7. Psychosocial Adaptation. 8. Psychological Support and Family Support. 9. Crew Self-Support. 10. Habitats and Habitability in Extreme Environments. 11. Human-Computer Interaction in Extreme Environments. Section 4: Organizational Processes. The Power of an Overarching Goal/Mission. 13. NASA and International Partners as Case Study of Organizational Mission. Section 5: Looking Forward. 14. Future Directions. 15. Inspirational Essay.