Part I: Historical accounts and current perspectives 1. Human factors in nuclear power: Reflections from 50 years in Finland 2. Applying Human Factors in nuclear industry -- people as a presence of positive capacity 3. From classical Human Factors towards a system view -- experiences from the Human Factors nuclear field in Sweden 4. Systems thinking applied to safety culture approach in Finland Part II: Practices and tools to support team performance 5. Reflective simulator debriefings for resilient power plant operations 6. Human performance tools as a part of programmatic human performance improvement 7. Multitasking and interruption management in control room operator work 8. Team performance, communication and shared situational awareness -- control room resource management (CCRM) in the nuclear industry Part III: Means and methods to facilitate organizational learning 9. Learning from operational events on organisational level -- findings from Finnish nuclear power industry 10. Improving organizational practices 11. Learning from emergency exercises through systematic debriefing 12. Towards learning organization -- practices in nuclear power plants Part IV: Insights and visions for inter-organizational cooperation 13. The urgent need to learn from Fukushima nuclear power accident -- from reactive to proactive through a systemic approach to safety 14. An institutional perspective on systemic approach to safety in a project context 15. Assessing the goodness of the concept of institutional strength-in-depth 16. Utilizing design thinking for renewal of safety management practices in the nuclear industry