This book highlights the design and performance of bio-inspired approach to a flying drone design. The flying drone design in this book is a micro-air vehicle (MAV) where the wingspan of the drone is less than 15cm. It focuses on the wing design of the MAV which is a flapping wing that is based on bat wings. In the first part, this book delves into the past work that has been done in this area and gives a bigger picture of the design approach as well as the blind spots that are in the field. In the second part, the book presents a novel design process with experiments that have been done to measure the performance of the design.