Mechanics of Aero-structures is a concise textbook for students of aircraft structures, which covers aircraft loads and maneuvers, as well as torsion and bending of single cell, multi-cell, and open thin-walled structures. Static structural stability, energy methods, and aero-elastic instability are discussed. Numerous examples and exercises are included to enhance students' facility with structural analysis. This well-illustrated textbook is meant for third- and fourth-year undergraduate students in aerospace and aeronautical engineering programs. The material included can be covered in a one semester course. Key Features Include: - Torsion and bending of single cell, multi-cell, and open sections are described in detail. - Aerodynamic loads, maneuvers, and elementary aero-elastic stability are included. - The book begins with a description of the aerodynamics loads to motivate the students. - Includes an in-depth description of energy methods, an essential topic.