Introduction to Unmanned Aircraft Systems, Third Edition by R. Kurt Barnhart (Editor), provides a comprehensive overview of unmanned aircraft systems (UAS) from foundational principles to advanced applications. The book covers a range of topics including sensors, controls, automation, regulations, safety procedures, and human factors. Written with input from leading experts in the field, this fully updated edition serves as an accessible university textbook for Aerospace Engineering and Aviation programs, focusing on civilian UAS applications. Starting with an historical perspective on unmanned aerial vehicles, it delves into each major UAS subsystem, making it a valuable resource for students and professionals alike.