Focus of the Book.- Theoretical Aspects and Closed Form Analysis.- Piezoelectric Materials.- Linear Theory of Piezoelectric Materials.- Theory of the Static Behavior of Piezoelectric Beam Bending Actuators.- Piezoelectric Beam Bending Actuators and Hamiltons Principle.- Theory of the Dynamic Behavior of Piezoelectric Beam Bending Actuators.- Network Representation of Piezoelectric Multilayered Bending Actuators.- Measurement Setup and Validation of Theoretical Aspects.- Measurement Setup for Piezoelectric Beam Bending Actuators.- Measurements and Analytical Calculations.- Sensor Integration for Tip Deflection Measurements.- Piezoelectric Beam Bending Actuator with Integrated Sensor.- Tip Deflection Measurement - Capacitive Sensor Principle.- Tip Deflection Measurement - Inductive Sensor Principle.- Conclusion.