Electrical engineering, often referred to as the electrical and electronic engineering (EEE), is a field of engineering that generally deals with the study and application of electricity, electronics and electromagnetism. This book gathers and presents data in the field of electrical engineering including electrospray technology for thin film devices, recent advances in flexible organic light-emitting devices, as well as liquid crystal display techniques and optoelectronics in spinal surgery and in the measurement of physical magnitudes.