The International Summer School is an event organized by the IEEE Italy Sensors Chapter in 2020 with a special focus on Ultrasonic and Piezoelectric Sensors. Topics: State of the art of applications Technologies of ultrasonic and piezoelectric sensors Piezoelectric materials for sensors and transducers for industry, medicine, robotics, micro fabrication technologies (CMUT, PMUT, screen printing, laser ablation) Equivalent model of sensors; frequency range and signals levels for different applications Analog and digital electronic systems for real time ultrasonic transducer signals conditioning and processing. Ultrasound medical echographic imaging for diagnostics (2D and 3D imaging, vector Doppler imaging) Industrial applications of ultrasonic and piezoelectric sensors Ultrasound guided waves systems and signal processing for Non-Destructive testing and Structural Health Monitoring Tactile sensing Energy harvesting Pressure sensors, flow sensors, microbalances Wearable and IoT applications Biometric imaging Researchers and academics with long experience in these fields will provide online lectures. Two keynote speakers with outstanding CV will give lectures. Finally, two interactive demonstrations of ultrasonic systems will be organized in order to perform experiments remotely.