Mechanical engineering is a broad and versatile field that involves the design, analysis, and manufacturing of a wide range of machines and systems, from power-generating machinery such as electric generators, internal combustion engines, and turbines, to power-using equipment like refrigeration and air-conditioning systems. In addition, mechanical engineers design machines that we commonly find in buildings, such as elevators and escalators. The scope of mechanical engineering is vast, encompassing every aspect of our modern life, including the functioning of the human body.This book entitled "Mechanical Engineering" provides a broad overview of various topics related to mechanical engineering, including sustainable development, emerging trends in mechanical and industrial engineering, robotics and automation, and utilizing solar energy. The book includes state-of-the-art research carried out by budding researchers and scientists from around the world. It covers the latest research trends in different branches of mechanical engineering, including the scope and challenges of adapting electric vehicles (EVs). The book provides valuable insights into the latest developments and challenges in the field of mechanical engineering.