Applications, products and market'; Regulation, privacy, safety issues'; Refresher of aerodynamic principles relevant for drone design and analysis; Multicopters; Fixed Wings; Flapping Wings; Hardware Components and Integration (motor, battery, frame, materials, autopilots, modeling); Communication; State estimation; Control methods (rate and attitude control, velocity control); Perception and navigation (way-point navigation, take-off and landing); Advanced topics drawn from the recent literature: novel drone concepts (VTOL, caged drones, multi-modal drones, modular drones, morphing drones, insect-like drones, etc.), Collision avoidance, SLAM methods, Swarming, etc.