Left-handedness is a complex psychological and neurological phenomenon. Recent research suggests that left-handed people encounter psychological problems and have a shorter life expectancy, but display greater intelligence and creativity in some spheres. This book examines the phenomenon, considering the various difficulties that left-handed people face in a world designed for right-handed people and suggesting ways in which things can be made more comfortable and safer for them. It also investigates other aspects of "sidedness", including foot, ear and eye preferences.