The book covers all the fundamental and applied aspects of passivity and provides a relevant and updated view of the advances and new trends in the field. It is structured in ten sections: • Growth, (Nano)structure and Composition of Passive Films • Passivity of Semiconductors • Electronic Properties of Passive Films • Passivity Issues in Biological Systems • Passivity in High-Temperature Water • Mechanical Properties of Passive Films, • Passivity Issues in Stress Corrosion Cracking and Tribocorrosion • Passivity Breakdown and Localized Corrosion • Modeling and Simulation • Surface Modifications and Inhibitors (for Improved Corrosion Resistance and/or Adhesion)