Chapter 1. Introduction -- Chapter 2. Basic Selective Maintenance Model -- Chapter 3. Selective Maintenance for Multi-State Systems Under Imperfect Maintenance -- Chapter 4. Selective Maintenance for Multi-State Systems with Loading Strategy -- Chapter 5. Selective Maintenance under Stochastic Time Durations of Breaks and Maintenance Actions -- Chapter 6. Robust Selective Maintenance under Imperfect Observations -- Chapter 7. Selective Maintenance and Inspection Optimization for Partially Observable Systems -- Chapter 8. Selective Maintenance for Systems Operating Multiple Consecutive Missions -- Chapter 9. Dynamic Selective Maintenance for Multi-State Systems Operating Multiple Consecutive Missions. .