The technology of drones is presented in this book in a modern view with discussions of structure, types, classifications and aerodynamics of drones. Applications of drones has grown fastly in several areas of science, engineering and technology. Standards for the use of drones in several countries are presented. This book also treats about business plans for drone activities. Methods of the use of drones in Civil Engineering are discussed and business plan for drone activities is discussed in detail, particularly regarding drone business applied to Civil Engineering.